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	/*
	* Copyright (c) 1995, 2015, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	package java.awt;

	import java.io.PrintStream;
	import java.io.PrintWriter;
	import java.util.Objects;
	import java.util.Vector;
	import java.util.Locale;
	import java.util.EventListener;
	import java.util.HashSet;
	import java.util.Map;
	import java.util.Set;
	import java.util.Collections;
	import java.awt.peer.ComponentPeer;
	import java.awt.peer.ContainerPeer;
	import java.awt.peer.LightweightPeer;
	import java.awt.image.BufferStrategy;
	import java.awt.image.ImageObserver;
	import java.awt.image.ImageProducer;
	import java.awt.image.ColorModel;
	import java.awt.image.VolatileImage;
	import java.awt.event.*;
	import java.io.Serializable;
	import java.io.ObjectOutputStream;
	import java.io.ObjectInputStream;
	import java.io.IOException;
	import java.beans.PropertyChangeListener;
	import java.beans.PropertyChangeSupport;
	import java.beans.Transient;
	import java.awt.im.InputContext;
	import java.awt.im.InputMethodRequests;
	import java.awt.dnd.DropTarget;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Method;
	import java.security.AccessController;
	import java.security.PrivilegedAction;
	import java.security.AccessControlContext;
	import javax.accessibility.*;
	import java.applet.Applet;

	import sun.security.action.GetPropertyAction;
	import sun.awt.AppContext;
	import sun.awt.AWTAccessor;
	import sun.awt.ConstrainableGraphics;
	import sun.awt.SubRegionShowable;
	import sun.awt.SunToolkit;
	import sun.awt.WindowClosingListener;
	import sun.awt.CausedFocusEvent;
	import sun.awt.EmbeddedFrame;
	import sun.awt.dnd.SunDropTargetEvent;
	import sun.awt.im.CompositionArea;
	import sun.font.FontManager;
	import sun.font.FontManagerFactory;
	import sun.font.SunFontManager;
	import sun.java2d.SunGraphics2D;
	import sun.java2d.pipe.Region;
	import sun.awt.image.VSyncedBSManager;
	import sun.java2d.pipe.hw.ExtendedBufferCapabilities;
	import static sun.java2d.pipe.hw.ExtendedBufferCapabilities.VSyncType.*;
	import sun.awt.RequestFocusController;
	import sun.java2d.SunGraphicsEnvironment;
	import sun.util.logging.PlatformLogger;

	/**
	* A <em>component</em> is an object having a graphical representation
	* that can be displayed on the screen and that can interact with the
	* user. Examples of components are the buttons, checkboxes, and scrollbars
	* of a typical graphical user interface. <p>
	* The <code>Component</code> class is the abstract superclass of
	* the nonmenu-related Abstract Window Toolkit components. Class
	* <code>Component</code> can also be extended directly to create a
	* lightweight component. A lightweight component is a component that is
	* not associated with a native window. On the contrary, a heavyweight
	* component is associated with a native window. The {@link #isLightweight()}
	* method may be used to distinguish between the two kinds of the components.
	* <p>
	* Lightweight and heavyweight components may be mixed in a single component
	* hierarchy. However, for correct operating of such a mixed hierarchy of
	* components, the whole hierarchy must be valid. When the hierarchy gets
	* invalidated, like after changing the bounds of components, or
	* adding/removing components to/from containers, the whole hierarchy must be
	* validated afterwards by means of the {@link Container#validate()} method
	* invoked on the top-most invalid container of the hierarchy.
	*
	* <h3>Serialization</h3>
	* It is important to note that only AWT listeners which conform
	* to the <code>Serializable</code> protocol will be saved when
	* the object is stored. If an AWT object has listeners that
	* aren't marked serializable, they will be dropped at
	* <code>writeObject</code> time. Developers will need, as always,
	* to consider the implications of making an object serializable.
	* One situation to watch out for is this:
	* <pre>
	* import java.awt.*;
	* import java.awt.event.*;
	* import java.io.Serializable;
	*
	* class MyApp implements ActionListener, Serializable
	* {
	* BigObjectThatShouldNotBeSerializedWithAButton bigOne;
	* Button aButton = new Button();
	*
	* MyApp()
	* {
	* // Oops, now aButton has a listener with a reference
	* // to bigOne!
	* aButton.addActionListener(this);
	* }
	*
	* public void actionPerformed(ActionEvent e)
	* {
	* System.out.println("Hello There");
	* }
	* }
	* </pre>
	* In this example, serializing <code>aButton</code> by itself
	* will cause <code>MyApp</code> and everything it refers to
	* to be serialized as well. The problem is that the listener
	* is serializable by coincidence, not by design. To separate
	* the decisions about <code>MyApp</code> and the
	* <code>ActionListener</code> being serializable one can use a
	* nested class, as in the following example:
	* <pre>
	* import java.awt.*;
	* import java.awt.event.*;
	* import java.io.Serializable;
	*
	* class MyApp implements java.io.Serializable
	* {
	* BigObjectThatShouldNotBeSerializedWithAButton bigOne;
	* Button aButton = new Button();
	*
	* static class MyActionListener implements ActionListener
	* {
	* public void actionPerformed(ActionEvent e)
	* {
	* System.out.println("Hello There");
	* }
	* }
	*
	* MyApp()
	* {
	* aButton.addActionListener(new MyActionListener());
	* }
	* }
	* </pre>
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	* <p>
	* For details on the focus subsystem, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>, and the
	* <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
	* for more information.
	*
	* @author Arthur van Hoff
	* @author Sami Shaio
	*/
	public abstract class Component implements ImageObserver, MenuContainer,
	Serializable
	{

	private static final PlatformLogger log = PlatformLogger.getLogger("java.awt.Component");
	private static final PlatformLogger eventLog = PlatformLogger.getLogger("java.awt.event.Component");
	private static final PlatformLogger focusLog = PlatformLogger.getLogger("java.awt.focus.Component");
	private static final PlatformLogger mixingLog = PlatformLogger.getLogger("java.awt.mixing.Component");

	/**
	* The peer of the component. The peer implements the component's
	* behavior. The peer is set when the <code>Component</code> is
	* added to a container that also is a peer.
	* @see #addNotify
	* @see #removeNotify
	*/
	transient ComponentPeer peer;

	/**
	* The parent of the object. It may be <code>null</code>
	* for top-level components.
	* @see #getParent
	*/
	transient Container parent;

	/**
	* The <code>AppContext</code> of the component. Applets/Plugin may
	* change the AppContext.
	*/
	transient AppContext appContext;

	/**
	* The x position of the component in the parent's coordinate system.
	*
	* @serial
	* @see #getLocation
	*/
	int x;

	/**
	* The y position of the component in the parent's coordinate system.
	*
	* @serial
	* @see #getLocation
	*/
	int y;

	/**
	* The width of the component.
	*
	* @serial
	* @see #getSize
	*/
	int width;

	/**
	* The height of the component.
	*
	* @serial
	* @see #getSize
	*/
	int height;

	/**
	* The foreground color for this component.
	* <code>foreground</code> can be <code>null</code>.
	*
	* @serial
	* @see #getForeground
	* @see #setForeground
	*/
	Color foreground;

	/**
	* The background color for this component.
	* <code>background</code> can be <code>null</code>.
	*
	* @serial
	* @see #getBackground
	* @see #setBackground
	*/
	Color background;

	/**
	* The font used by this component.
	* The <code>font</code> can be <code>null</code>.
	*
	* @serial
	* @see #getFont
	* @see #setFont
	*/
	volatile Font font;

	/**
	* The font which the peer is currently using.
	* (<code>null</code> if no peer exists.)
	*/
	Font peerFont;

	/**
	* The cursor displayed when pointer is over this component.
	* This value can be <code>null</code>.
	*
	* @serial
	* @see #getCursor
	* @see #setCursor
	*/
	Cursor cursor;

	/**
	* The locale for the component.
	*
	* @serial
	* @see #getLocale
	* @see #setLocale
	*/
	Locale locale;

	/**
	* A reference to a <code>GraphicsConfiguration</code> object
	* used to describe the characteristics of a graphics
	* destination.
	* This value can be <code>null</code>.
	*
	* @since 1.3
	* @serial
	* @see GraphicsConfiguration
	* @see #getGraphicsConfiguration
	*/
	private transient volatile GraphicsConfiguration graphicsConfig;

	/**
	* A reference to a <code>BufferStrategy</code> object
	* used to manipulate the buffers on this component.
	*
	* @since 1.4
	* @see java.awt.image.BufferStrategy
	* @see #getBufferStrategy()
	*/
	transient BufferStrategy bufferStrategy = null;

	/**
	* True when the object should ignore all repaint events.
	*
	* @since 1.4
	* @serial
	* @see #setIgnoreRepaint
	* @see #getIgnoreRepaint
	*/
	boolean ignoreRepaint = false;

	/**
	* True when the object is visible. An object that is not
	* visible is not drawn on the screen.
	*
	* @serial
	* @see #isVisible
	* @see #setVisible
	*/
	boolean visible = true;

	/**
	* True when the object is enabled. An object that is not
	* enabled does not interact with the user.
	*
	* @serial
	* @see #isEnabled
	* @see #setEnabled
	*/
	boolean enabled = true;

	/**
	* True when the object is valid. An invalid object needs to
	* be layed out. This flag is set to false when the object
	* size is changed.
	*
	* @serial
	* @see #isValid
	* @see #validate
	* @see #invalidate
	*/
	private volatile boolean valid = false;

	/**
	* The <code>DropTarget</code> associated with this component.
	*
	* @since 1.2
	* @serial
	* @see #setDropTarget
	* @see #getDropTarget
	*/
	DropTarget dropTarget;

	/**
	* @serial
	* @see #add
	*/
	Vector<PopupMenu> popups;

	/**
	* A component's name.
	* This field can be <code>null</code>.
	*
	* @serial
	* @see #getName
	* @see #setName(String)
	*/
	private String name;

	/**
	* A bool to determine whether the name has
	* been set explicitly. <code>nameExplicitlySet</code> will
	* be false if the name has not been set and
	* true if it has.
	*
	* @serial
	* @see #getName
	* @see #setName(String)
	*/
	private boolean nameExplicitlySet = false;

	/**
	* Indicates whether this Component can be focused.
	*
	* @serial
	* @see #setFocusable
	* @see #isFocusable
	* @since 1.4
	*/
	private boolean focusable = true;

	private static final int FOCUS_TRAVERSABLE_UNKNOWN = 0;
	private static final int FOCUS_TRAVERSABLE_DEFAULT = 1;
	private static final int FOCUS_TRAVERSABLE_SET = 2;

	/**
	* Tracks whether this Component is relying on default focus travesability.
	*
	* @serial
	* @since 1.4
	*/
	private int isFocusTraversableOverridden = FOCUS_TRAVERSABLE_UNKNOWN;

	/**
	* The focus traversal keys. These keys will generate focus traversal
	* behavior for Components for which focus traversal keys are enabled. If a
	* value of null is specified for a traversal key, this Component inherits
	* that traversal key from its parent. If all ancestors of this Component
	* have null specified for that traversal key, then the current
	* KeyboardFocusManager's default traversal key is used.
	*
	* @serial
	* @see #setFocusTraversalKeys
	* @see #getFocusTraversalKeys
	* @since 1.4
	*/
	Set<AWTKeyStroke>[] focusTraversalKeys;

	private static final String[] focusTraversalKeyPropertyNames = {
	"forwardFocusTraversalKeys",
	"backwardFocusTraversalKeys",
	"upCycleFocusTraversalKeys",
	"downCycleFocusTraversalKeys"
	};

	/**
	* Indicates whether focus traversal keys are enabled for this Component.
	* Components for which focus traversal keys are disabled receive key
	* events for focus traversal keys. Components for which focus traversal
	* keys are enabled do not see these events; instead, the events are
	* automatically converted to traversal operations.
	*
	* @serial
	* @see #setFocusTraversalKeysEnabled
	* @see #getFocusTraversalKeysEnabled
	* @since 1.4
	*/
	private boolean focusTraversalKeysEnabled = true;

	/**
	* The locking object for AWT component-tree and layout operations.
	*
	* @see #getTreeLock
	*/
	static final Object LOCK = new AWTTreeLock();
	static class AWTTreeLock {}

	/*
	* The component's AccessControlContext.
	*/
	private transient volatile AccessControlContext acc =
	AccessController.getContext();

	/**
	* Minimum size.
	* (This field perhaps should have been transient).
	*
	* @serial
	*/
	Dimension minSize;

	/**
	* Whether or not setMinimumSize has been invoked with a non-null value.
	*/
	boolean minSizeSet;

	/**
	* Preferred size.
	* (This field perhaps should have been transient).
	*
	* @serial
	*/
	Dimension prefSize;

	/**
	* Whether or not setPreferredSize has been invoked with a non-null value.
	*/
	boolean prefSizeSet;

	/**
	* Maximum size
	*
	* @serial
	*/
	Dimension maxSize;

	/**
	* Whether or not setMaximumSize has been invoked with a non-null value.
	*/
	boolean maxSizeSet;

	/**
	* The orientation for this component.
	* @see #getComponentOrientation
	* @see #setComponentOrientation
	*/
	transient ComponentOrientation componentOrientation
	= ComponentOrientation.UNKNOWN;

	/**
	* <code>newEventsOnly</code> will be true if the event is
	* one of the event types enabled for the component.
	* It will then allow for normal processing to
	* continue. If it is false the event is passed
	* to the component's parent and up the ancestor
	* tree until the event has been consumed.
	*
	* @serial
	* @see #dispatchEvent
	*/
	boolean newEventsOnly = false;
	transient ComponentListener componentListener;
	transient FocusListener focusListener;
	transient HierarchyListener hierarchyListener;
	transient HierarchyBoundsListener hierarchyBoundsListener;
	transient KeyListener keyListener;
	transient MouseListener mouseListener;
	transient MouseMotionListener mouseMotionListener;
	transient MouseWheelListener mouseWheelListener;
	transient InputMethodListener inputMethodListener;

	transient RuntimeException windowClosingException = null;

	/** Internal, constants for serialization */
	final static String actionListenerK = "actionL";
	final static String adjustmentListenerK = "adjustmentL";
	final static String componentListenerK = "componentL";
	final static String containerListenerK = "containerL";
	final static String focusListenerK = "focusL";
	final static String itemListenerK = "itemL";
	final static String keyListenerK = "keyL";
	final static String mouseListenerK = "mouseL";
	final static String mouseMotionListenerK = "mouseMotionL";
	final static String mouseWheelListenerK = "mouseWheelL";
	final static String textListenerK = "textL";
	final static String ownedWindowK = "ownedL";
	final static String windowListenerK = "windowL";
	final static String inputMethodListenerK = "inputMethodL";
	final static String hierarchyListenerK = "hierarchyL";
	final static String hierarchyBoundsListenerK = "hierarchyBoundsL";
	final static String windowStateListenerK = "windowStateL";
	final static String windowFocusListenerK = "windowFocusL";

	/**
	* The <code>eventMask</code> is ONLY set by subclasses via
	* <code>enableEvents</code>.
	* The mask should NOT be set when listeners are registered
	* so that we can distinguish the difference between when
	* listeners request events and subclasses request them.
	* One bit is used to indicate whether input methods are
	* enabled; this bit is set by <code>enableInputMethods</code> and is
	* on by default.
	*
	* @serial
	* @see #enableInputMethods
	* @see AWTEvent
	*/
	long eventMask = AWTEvent.INPUT_METHODS_ENABLED_MASK;

	/**
	* Static properties for incremental drawing.
	* @see #imageUpdate
	*/
	static boolean isInc;
	static int incRate;
	static {
	/* ensure that the necessary native libraries are loaded */
	Toolkit.loadLibraries();
	/* initialize JNI field and method ids */
	if (!GraphicsEnvironment.isHeadless()) {
	initIDs();
	}

	String s = java.security.AccessController.doPrivileged(
	new GetPropertyAction("awt.image.incrementaldraw"));
	isInc = (s == null \|\| s.equals("true"));

	s = java.security.AccessController.doPrivileged(
	new GetPropertyAction("awt.image.redrawrate"));
	incRate = (s != null) ? Integer.parseInt(s) : 100;
	}

	/**
	* Ease-of-use constant for <code>getAlignmentY()</code>.
	* Specifies an alignment to the top of the component.
	* @see #getAlignmentY
	*/
	public static final float TOP_ALIGNMENT = 0.0f;

	/**
	* Ease-of-use constant for <code>getAlignmentY</code> and
	* <code>getAlignmentX</code>. Specifies an alignment to
	* the center of the component
	* @see #getAlignmentX
	* @see #getAlignmentY
	*/
	public static final float CENTER_ALIGNMENT = 0.5f;

	/**
	* Ease-of-use constant for <code>getAlignmentY</code>.
	* Specifies an alignment to the bottom of the component.
	* @see #getAlignmentY
	*/
	public static final float BOTTOM_ALIGNMENT = 1.0f;

	/**
	* Ease-of-use constant for <code>getAlignmentX</code>.
	* Specifies an alignment to the left side of the component.
	* @see #getAlignmentX
	*/
	public static final float LEFT_ALIGNMENT = 0.0f;

	/**
	* Ease-of-use constant for <code>getAlignmentX</code>.
	* Specifies an alignment to the right side of the component.
	* @see #getAlignmentX
	*/
	public static final float RIGHT_ALIGNMENT = 1.0f;

	/*
	* JDK 1.1 serialVersionUID
	*/
	private static final long serialVersionUID = -7644114512714619750L;

	/**
	* If any <code>PropertyChangeListeners</code> have been registered,
	* the <code>changeSupport</code> field describes them.
	*
	* @serial
	* @since 1.2
	* @see #addPropertyChangeListener
	* @see #removePropertyChangeListener
	* @see #firePropertyChange
	*/
	private PropertyChangeSupport changeSupport;

	/*
	* In some cases using "this" as an object to synchronize by
	* can lead to a deadlock if client code also uses synchronization
	* by a component object. For every such situation revealed we should
	* consider possibility of replacing "this" with the package private
	* objectLock object introduced below. So far there're 3 issues known:
	* - CR 6708322 (the getName/setName methods);
	* - CR 6608764 (the PropertyChangeListener machinery);
	* - CR 7108598 (the Container.paint/KeyboardFocusManager.clearMostRecentFocusOwner methods).
	*
	* Note: this field is considered final, though readObject() prohibits
	* initializing final fields.
	*/
	private transient Object objectLock = new Object();
	Object getObjectLock() {
	return objectLock;
	}

	/*
	* Returns the acc this component was constructed with.
	*/
	final AccessControlContext getAccessControlContext() {
	if (acc == null) {
	throw new SecurityException("Component is missing AccessControlContext");
	}
	return acc;
	}

	boolean isPacked = false;

	/**
	* Pseudoparameter for direct Geometry API (setLocation, setBounds setSize
	* to signal setBounds what's changing. Should be used under TreeLock.
	* This is only needed due to the inability to change the cross-calling
	* order of public and deprecated methods.
	*/
	private int boundsOp = ComponentPeer.DEFAULT_OPERATION;

	/**
	* Enumeration of the common ways the baseline of a component can
	* change as the size changes. The baseline resize behavior is
	* primarily for layout managers that need to know how the
	* position of the baseline changes as the component size changes.
	* In general the baseline resize behavior will be valid for sizes
	* greater than or equal to the minimum size (the actual minimum
	* size; not a developer specified minimum size). For sizes
	* smaller than the minimum size the baseline may change in a way
	* other than the baseline resize behavior indicates. Similarly,
	* as the size approaches <code>Integer.MAX_VALUE</code> and/or
	* <code>Short.MAX_VALUE</code> the baseline may change in a way
	* other than the baseline resize behavior indicates.
	*
	* @see #getBaselineResizeBehavior
	* @see #getBaseline(int,int)
	* @since 1.6
	*/
	public enum BaselineResizeBehavior {
	/**
	* Indicates the baseline remains fixed relative to the
	* y-origin. That is, <code>getBaseline</code> returns
	* the same value regardless of the height or width. For example, a
	* <code>JLabel</code> containing non-empty text with a
	* vertical alignment of <code>TOP</code> should have a
	* baseline type of <code>CONSTANT_ASCENT</code>.
	*/
	CONSTANT_ASCENT,

	/**
	* Indicates the baseline remains fixed relative to the height
	* and does not change as the width is varied. That is, for
	* any height H the difference between H and
	* <code>getBaseline(w, H)</code> is the same. For example, a
	* <code>JLabel</code> containing non-empty text with a
	* vertical alignment of <code>BOTTOM</code> should have a
	* baseline type of <code>CONSTANT_DESCENT</code>.
	*/
	CONSTANT_DESCENT,

	/**
	* Indicates the baseline remains a fixed distance from
	* the center of the component. That is, for any height H the
	* difference between <code>getBaseline(w, H)</code> and
	* <code>H / 2</code> is the same (plus or minus one depending upon
	* rounding error).
	* <p>
	* Because of possible rounding errors it is recommended
	* you ask for the baseline with two consecutive heights and use
	* the return value to determine if you need to pad calculations
	* by 1. The following shows how to calculate the baseline for
	* any height:
	* <pre>
	* Dimension preferredSize = component.getPreferredSize();
	* int baseline = getBaseline(preferredSize.width,
	* preferredSize.height);
	* int nextBaseline = getBaseline(preferredSize.width,
	* preferredSize.height + 1);
	* // Amount to add to height when calculating where baseline
	* // lands for a particular height:
	* int padding = 0;
	* // Where the baseline is relative to the mid point
	* int baselineOffset = baseline - height / 2;
	* if (preferredSize.height % 2 == 0 &&
	* baseline != nextBaseline) {
	* padding = 1;
	* }
	* else if (preferredSize.height % 2 == 1 &&
	* baseline == nextBaseline) {
	* baselineOffset--;
	* padding = 1;
	* }
	* // The following calculates where the baseline lands for
	* // the height z:
	* int calculatedBaseline = (z + padding) / 2 + baselineOffset;
	* </pre>
	*/
	CENTER_OFFSET,

	/**
	* Indicates the baseline resize behavior can not be expressed using
	* any of the other constants. This may also indicate the baseline
	* varies with the width of the component. This is also returned
	* by components that do not have a baseline.
	*/
	OTHER
	}

	/*
	* The shape set with the applyCompoundShape() method. It uncludes the result
	* of the HW/LW mixing related shape computation. It may also include
	* the user-specified shape of the component.
	* The 'null' value means the component has normal shape (or has no shape at all)
	* and applyCompoundShape() will skip the following shape identical to normal.
	*/
	private transient Region compoundShape = null;

	/*
	* Represents the shape of this lightweight component to be cut out from
	* heavyweight components should they intersect. Possible values:
	* 1. null - consider the shape rectangular
	* 2. EMPTY_REGION - nothing gets cut out (children still get cut out)
	* 3. non-empty - this shape gets cut out.
	*/
	private transient Region mixingCutoutRegion = null;

	/*
	* Indicates whether addNotify() is complete
	* (i.e. the peer is created).
	*/
	private transient boolean isAddNotifyComplete = false;

	/**
	* Should only be used in subclass getBounds to check that part of bounds
	* is actualy changing
	*/
	int getBoundsOp() {
	assert Thread.holdsLock(getTreeLock());
	return boundsOp;
	}

	void setBoundsOp(int op) {
	assert Thread.holdsLock(getTreeLock());
	if (op == ComponentPeer.RESET_OPERATION) {
	boundsOp = ComponentPeer.DEFAULT_OPERATION;
	} else
	if (boundsOp == ComponentPeer.DEFAULT_OPERATION) {
	boundsOp = op;
	}
	}

	// Whether this Component has had the background erase flag
	// specified via SunToolkit.disableBackgroundErase(). This is
	// needed in order to make this function work on X11 platforms,
	// where currently there is no chance to interpose on the creation
	// of the peer and therefore the call to XSetBackground.
	transient boolean backgroundEraseDisabled;

	static {
	AWTAccessor.setComponentAccessor(new AWTAccessor.ComponentAccessor() {
	public void setBackgroundEraseDisabled(Component comp, boolean disabled) {
	comp.backgroundEraseDisabled = disabled;
	}
	public boolean getBackgroundEraseDisabled(Component comp) {
	return comp.backgroundEraseDisabled;
	}
	public Rectangle getBounds(Component comp) {
	return new Rectangle(comp.x, comp.y, comp.width, comp.height);
	}
	public void setMixingCutoutShape(Component comp, Shape shape) {
	Region region = shape == null ? null :
	Region.getInstance(shape, null);

	synchronized (comp.getTreeLock()) {
	boolean needShowing = false;
	boolean needHiding = false;

	if (!comp.isNonOpaqueForMixing()) {
	needHiding = true;
	}

	comp.mixingCutoutRegion = region;

	if (!comp.isNonOpaqueForMixing()) {
	needShowing = true;
	}

	if (comp.isMixingNeeded()) {
	if (needHiding) {
	comp.mixOnHiding(comp.isLightweight());
	}
	if (needShowing) {
	comp.mixOnShowing();
	}
	}
	}
	}

	public void setGraphicsConfiguration(Component comp,
	GraphicsConfiguration gc)
	{
	comp.setGraphicsConfiguration(gc);
	}
	public boolean requestFocus(Component comp, CausedFocusEvent.Cause cause) {
	return comp.requestFocus(cause);
	}
	public boolean canBeFocusOwner(Component comp) {
	return comp.canBeFocusOwner();
	}

	public boolean isVisible(Component comp) {
	return comp.isVisible_NoClientCode();
	}
	public void setRequestFocusController
	(RequestFocusController requestController)
	{
	Component.setRequestFocusController(requestController);
	}
	public AppContext getAppContext(Component comp) {
	return comp.appContext;
	}
	public void setAppContext(Component comp, AppContext appContext) {
	comp.appContext = appContext;
	}
	public Container getParent(Component comp) {
	return comp.getParent_NoClientCode();
	}
	public void setParent(Component comp, Container parent) {
	comp.parent = parent;
	}
	public void setSize(Component comp, int width, int height) {
	comp.width = width;
	comp.height = height;
	}
	public Point getLocation(Component comp) {
	return comp.location_NoClientCode();
	}
	public void setLocation(Component comp, int x, int y) {
	comp.x = x;
	comp.y = y;
	}
	public boolean isEnabled(Component comp) {
	return comp.isEnabledImpl();
	}
	public boolean isDisplayable(Component comp) {
	return comp.peer != null;
	}
	public Cursor getCursor(Component comp) {
	return comp.getCursor_NoClientCode();
	}
	public ComponentPeer getPeer(Component comp) {
	return comp.peer;
	}
	public void setPeer(Component comp, ComponentPeer peer) {
	comp.peer = peer;
	}
	public boolean isLightweight(Component comp) {
	return (comp.peer instanceof LightweightPeer);
	}
	public boolean getIgnoreRepaint(Component comp) {
	return comp.ignoreRepaint;
	}
	public int getWidth(Component comp) {
	return comp.width;
	}
	public int getHeight(Component comp) {
	return comp.height;
	}
	public int getX(Component comp) {
	return comp.x;
	}
	public int getY(Component comp) {
	return comp.y;
	}
	public Color getForeground(Component comp) {
	return comp.foreground;
	}
	public Color getBackground(Component comp) {
	return comp.background;
	}
	public void setBackground(Component comp, Color background) {
	comp.background = background;
	}
	public Font getFont(Component comp) {
	return comp.getFont_NoClientCode();
	}
	public void processEvent(Component comp, AWTEvent e) {
	comp.processEvent(e);
	}

	public AccessControlContext getAccessControlContext(Component comp) {
	return comp.getAccessControlContext();
	}

	public void revalidateSynchronously(Component comp) {
	comp.revalidateSynchronously();
	}
	});
	}

	/**
	* Constructs a new component. Class <code>Component</code> can be
	* extended directly to create a lightweight component that does not
	* utilize an opaque native window. A lightweight component must be
	* hosted by a native container somewhere higher up in the component
	* tree (for example, by a <code>Frame</code> object).
	*/
	protected Component() {
	appContext = AppContext.getAppContext();
	}

	@SuppressWarnings({"rawtypes", "unchecked"})
	void initializeFocusTraversalKeys() {
	focusTraversalKeys = new Set[3];
	}

	/**
	* Constructs a name for this component. Called by <code>getName</code>
	* when the name is <code>null</code>.
	*/
	String constructComponentName() {
	return null; // For strict compliance with prior platform versions, a Component
	// that doesn't set its name should return null from
	// getName()
	}

	/**
	* Gets the name of the component.
	* @return this component's name
	* @see #setName
	* @since JDK1.1
	*/
	public String getName() {
	if (name == null && !nameExplicitlySet) {
	synchronized(getObjectLock()) {
	if (name == null && !nameExplicitlySet)
	name = constructComponentName();
	}
	}
	return name;
	}

	/**
	* Sets the name of the component to the specified string.
	* @param name the string that is to be this
	* component's name
	* @see #getName
	* @since JDK1.1
	*/
	public void setName(String name) {
	String oldName;
	synchronized(getObjectLock()) {
	oldName = this.name;
	this.name = name;
	nameExplicitlySet = true;
	}
	firePropertyChange("name", oldName, name);
	}

	/**
	* Gets the parent of this component.
	* @return the parent container of this component
	* @since JDK1.0
	*/
	public Container getParent() {
	return getParent_NoClientCode();
	}

	// NOTE: This method may be called by privileged threads.
	// This functionality is implemented in a package-private method
	// to insure that it cannot be overridden by client subclasses.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	final Container getParent_NoClientCode() {
	return parent;
	}

	// This method is overridden in the Window class to return null,
	// because the parent field of the Window object contains
	// the owner of the window, not its parent.
	Container getContainer() {
	return getParent_NoClientCode();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* programs should not directly manipulate peers;
	* replaced by <code>boolean isDisplayable()</code>.
	*/
	@Deprecated
	public ComponentPeer getPeer() {
	return peer;
	}

	/**
	* Associate a <code>DropTarget</code> with this component.
	* The <code>Component</code> will receive drops only if it
	* is enabled.
	*
	* @see #isEnabled
	* @param dt The DropTarget
	*/

	public synchronized void setDropTarget(DropTarget dt) {
	if (dt == dropTarget \|\| (dropTarget != null && dropTarget.equals(dt)))
	return;

	DropTarget old;

	if ((old = dropTarget) != null) {
	if (peer != null) dropTarget.removeNotify(peer);

	DropTarget t = dropTarget;

	dropTarget = null;

	try {
	t.setComponent(null);
	} catch (IllegalArgumentException iae) {
	// ignore it.
	}
	}

	// if we have a new one, and we have a peer, add it!

	if ((dropTarget = dt) != null) {
	try {
	dropTarget.setComponent(this);
	if (peer != null) dropTarget.addNotify(peer);
	} catch (IllegalArgumentException iae) {
	if (old != null) {
	try {
	old.setComponent(this);
	if (peer != null) dropTarget.addNotify(peer);
	} catch (IllegalArgumentException iae1) {
	// ignore it!
	}
	}
	}
	}
	}

	/**
	* Gets the <code>DropTarget</code> associated with this
	* <code>Component</code>.
	*/

	public synchronized DropTarget getDropTarget() { return dropTarget; }

	/**
	* Gets the <code>GraphicsConfiguration</code> associated with this
	* <code>Component</code>.
	* If the <code>Component</code> has not been assigned a specific
	* <code>GraphicsConfiguration</code>,
	* the <code>GraphicsConfiguration</code> of the
	* <code>Component</code> object's top-level container is
	* returned.
	* If the <code>Component</code> has been created, but not yet added
	* to a <code>Container</code>, this method returns <code>null</code>.
	*
	* @return the <code>GraphicsConfiguration</code> used by this
	* <code>Component</code> or <code>null</code>
	* @since 1.3
	*/
	public GraphicsConfiguration getGraphicsConfiguration() {
	return getGraphicsConfiguration_NoClientCode();
	}

	final GraphicsConfiguration getGraphicsConfiguration_NoClientCode() {
	return graphicsConfig;
	}

	void setGraphicsConfiguration(GraphicsConfiguration gc) {
	synchronized(getTreeLock()) {
	if (updateGraphicsData(gc)) {
	removeNotify();
	addNotify();
	}
	}
	}

	boolean updateGraphicsData(GraphicsConfiguration gc) {
	checkTreeLock();

	if (graphicsConfig == gc) {
	return false;
	}

	graphicsConfig = gc;

	ComponentPeer peer = getPeer();
	if (peer != null) {
	return peer.updateGraphicsData(gc);
	}
	return false;
	}

	/**
	* Checks that this component's <code>GraphicsDevice</code>
	* <code>idString</code> matches the string argument.
	*/
	void checkGD(String stringID) {
	if (graphicsConfig != null) {
	if (!graphicsConfig.getDevice().getIDstring().equals(stringID)) {
	throw new IllegalArgumentException(
	"adding a container to a container on a different GraphicsDevice");
	}
	}
	}

	/**
	* Gets this component's locking object (the object that owns the thread
	* synchronization monitor) for AWT component-tree and layout
	* operations.
	* @return this component's locking object
	*/
	public final Object getTreeLock() {
	return LOCK;
	}

	final void checkTreeLock() {
	if (!Thread.holdsLock(getTreeLock())) {
	throw new IllegalStateException("This function should be called while holding treeLock");
	}
	}

	/**
	* Gets the toolkit of this component. Note that
	* the frame that contains a component controls which
	* toolkit is used by that component. Therefore if the component
	* is moved from one frame to another, the toolkit it uses may change.
	* @return the toolkit of this component
	* @since JDK1.0
	*/
	public Toolkit getToolkit() {
	return getToolkitImpl();
	}

	/*
	* This is called by the native code, so client code can't
	* be called on the toolkit thread.
	*/
	final Toolkit getToolkitImpl() {
	Container parent = this.parent;
	if (parent != null) {
	return parent.getToolkitImpl();
	}
	return Toolkit.getDefaultToolkit();
	}

	/**
	* Determines whether this component is valid. A component is valid
	* when it is correctly sized and positioned within its parent
	* container and all its children are also valid.
	* In order to account for peers' size requirements, components are invalidated
	* before they are first shown on the screen. By the time the parent container
	* is fully realized, all its components will be valid.
	* @return <code>true</code> if the component is valid, <code>false</code>
	* otherwise
	* @see #validate
	* @see #invalidate
	* @since JDK1.0
	*/
	public boolean isValid() {
	return (peer != null) && valid;
	}

	/**
	* Determines whether this component is displayable. A component is
	* displayable when it is connected to a native screen resource.
	* <p>
	* A component is made displayable either when it is added to
	* a displayable containment hierarchy or when its containment
	* hierarchy is made displayable.
	* A containment hierarchy is made displayable when its ancestor
	* window is either packed or made visible.
	* <p>
	* A component is made undisplayable either when it is removed from
	* a displayable containment hierarchy or when its containment hierarchy
	* is made undisplayable. A containment hierarchy is made
	* undisplayable when its ancestor window is disposed.
	*
	* @return <code>true</code> if the component is displayable,
	* <code>false</code> otherwise
	* @see Container#add(Component)
	* @see Window#pack
	* @see Window#show
	* @see Container#remove(Component)
	* @see Window#dispose
	* @since 1.2
	*/
	public boolean isDisplayable() {
	return getPeer() != null;
	}

	/**
	* Determines whether this component should be visible when its
	* parent is visible. Components are
	* initially visible, with the exception of top level components such
	* as <code>Frame</code> objects.
	* @return <code>true</code> if the component is visible,
	* <code>false</code> otherwise
	* @see #setVisible
	* @since JDK1.0
	*/
	@Transient
	public boolean isVisible() {
	return isVisible_NoClientCode();
	}
	final boolean isVisible_NoClientCode() {
	return visible;
	}

	/**
	* Determines whether this component will be displayed on the screen.
	* @return <code>true</code> if the component and all of its ancestors
	* until a toplevel window or null parent are visible,
	* <code>false</code> otherwise
	*/
	boolean isRecursivelyVisible() {
	return visible && (parent == null \|\| parent.isRecursivelyVisible());
	}

	/**
	* Determines the bounds of a visible part of the component relative to its
	* parent.
	*
	* @return the visible part of bounds
	*/
	private Rectangle getRecursivelyVisibleBounds() {
	final Component container = getContainer();
	final Rectangle bounds = getBounds();
	if (container == null) {
	// we are top level window or haven't a container, return our bounds
	return bounds;
	}
	// translate the container's bounds to our coordinate space
	final Rectangle parentsBounds = container.getRecursivelyVisibleBounds();
	parentsBounds.setLocation(0, 0);
	return parentsBounds.intersection(bounds);
	}

	/**
	* Translates absolute coordinates into coordinates in the coordinate
	* space of this component.
	*/
	Point pointRelativeToComponent(Point absolute) {
	Point compCoords = getLocationOnScreen();
	return new Point(absolute.x - compCoords.x,
	absolute.y - compCoords.y);
	}

	/**
	* Assuming that mouse location is stored in PointerInfo passed
	* to this method, it finds a Component that is in the same
	* Window as this Component and is located under the mouse pointer.
	* If no such Component exists, null is returned.
	* NOTE: this method should be called under the protection of
	* tree lock, as it is done in Component.getMousePosition() and
	* Container.getMousePosition(boolean).
	*/
	Component findUnderMouseInWindow(PointerInfo pi) {
	if (!isShowing()) {
	return null;
	}
	Window win = getContainingWindow();
	if (!Toolkit.getDefaultToolkit().getMouseInfoPeer().isWindowUnderMouse(win)) {
	return null;
	}
	final boolean INCLUDE_DISABLED = true;
	Point relativeToWindow = win.pointRelativeToComponent(pi.getLocation());
	Component inTheSameWindow = win.findComponentAt(relativeToWindow.x,
	relativeToWindow.y,
	INCLUDE_DISABLED);
	return inTheSameWindow;
	}

	/**
	* Returns the position of the mouse pointer in this <code>Component</code>'s
	* coordinate space if the <code>Component</code> is directly under the mouse
	* pointer, otherwise returns <code>null</code>.
	* If the <code>Component</code> is not showing on the screen, this method
	* returns <code>null</code> even if the mouse pointer is above the area
	* where the <code>Component</code> would be displayed.
	* If the <code>Component</code> is partially or fully obscured by other
	* <code>Component</code>s or native windows, this method returns a non-null
	* value only if the mouse pointer is located above the unobscured part of the
	* <code>Component</code>.
	* <p>
	* For <code>Container</code>s it returns a non-null value if the mouse is
	* above the <code>Container</code> itself or above any of its descendants.
	* Use {@link Container#getMousePosition(boolean)} if you need to exclude children.
	* <p>
	* Sometimes the exact mouse coordinates are not important, and the only thing
	* that matters is whether a specific <code>Component</code> is under the mouse
	* pointer. If the return value of this method is <code>null</code>, mouse
	* pointer is not directly above the <code>Component</code>.
	*
	* @exception HeadlessException if GraphicsEnvironment.isHeadless() returns true
	* @see #isShowing
	* @see Container#getMousePosition
	* @return mouse coordinates relative to this <code>Component</code>, or null
	* @since 1.5
	*/
	public Point getMousePosition() throws HeadlessException {
	if (GraphicsEnvironment.isHeadless()) {
	throw new HeadlessException();
	}

	PointerInfo pi = java.security.AccessController.doPrivileged(
	new java.security.PrivilegedAction<PointerInfo>() {
	public PointerInfo run() {
	return MouseInfo.getPointerInfo();
	}
	}
	);

	synchronized (getTreeLock()) {
	Component inTheSameWindow = findUnderMouseInWindow(pi);
	if (!isSameOrAncestorOf(inTheSameWindow, true)) {
	return null;
	}
	return pointRelativeToComponent(pi.getLocation());
	}
	}

	/**
	* Overridden in Container. Must be called under TreeLock.
	*/
	boolean isSameOrAncestorOf(Component comp, boolean allowChildren) {
	return comp == this;
	}

	/**
	* Determines whether this component is showing on screen. This means
	* that the component must be visible, and it must be in a container
	* that is visible and showing.
	* <p>
	* <strong>Note:</strong> sometimes there is no way to detect whether the
	* {@code Component} is actually visible to the user. This can happen when:
	* <ul>
	* <li>the component has been added to a visible {@code ScrollPane} but
	* the {@code Component} is not currently in the scroll pane's view port.
	* <li>the {@code Component} is obscured by another {@code Component} or
	* {@code Container}.
	* </ul>
	* @return <code>true</code> if the component is showing,
	* <code>false</code> otherwise
	* @see #setVisible
	* @since JDK1.0
	*/
	public boolean isShowing() {
	if (visible && (peer != null)) {
	Container parent = this.parent;
	return (parent == null) \|\| parent.isShowing();
	}
	return false;
	}

	/**
	* Determines whether this component is enabled. An enabled component
	* can respond to user input and generate events. Components are
	* enabled initially by default. A component may be enabled or disabled by
	* calling its <code>setEnabled</code> method.
	* @return <code>true</code> if the component is enabled,
	* <code>false</code> otherwise
	* @see #setEnabled
	* @since JDK1.0
	*/
	public boolean isEnabled() {
	return isEnabledImpl();
	}

	/*
	* This is called by the native code, so client code can't
	* be called on the toolkit thread.
	*/
	final boolean isEnabledImpl() {
	return enabled;
	}

	/**
	* Enables or disables this component, depending on the value of the
	* parameter <code>b</code>. An enabled component can respond to user
	* input and generate events. Components are enabled initially by default.
	*
	* <p>Note: Disabling a lightweight component does not prevent it from
	* receiving MouseEvents.
	* <p>Note: Disabling a heavyweight container prevents all components
	* in this container from receiving any input events. But disabling a
	* lightweight container affects only this container.
	*
	* @param b If <code>true</code>, this component is
	* enabled; otherwise this component is disabled
	* @see #isEnabled
	* @see #isLightweight
	* @since JDK1.1
	*/
	public void setEnabled(boolean b) {
	enable(b);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setEnabled(boolean)</code>.
	*/
	@Deprecated
	public void enable() {
	if (!enabled) {
	synchronized (getTreeLock()) {
	enabled = true;
	ComponentPeer peer = this.peer;
	if (peer != null) {
	peer.setEnabled(true);
	if (visible && !getRecursivelyVisibleBounds().isEmpty()) {
	updateCursorImmediately();
	}
	}
	}
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.ENABLED);
	}
	}
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setEnabled(boolean)</code>.
	*/
	@Deprecated
	public void enable(boolean b) {
	if (b) {
	enable();
	} else {
	disable();
	}
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setEnabled(boolean)</code>.
	*/
	@Deprecated
	public void disable() {
	if (enabled) {
	KeyboardFocusManager.clearMostRecentFocusOwner(this);
	synchronized (getTreeLock()) {
	enabled = false;
	// A disabled lw container is allowed to contain a focus owner.
	if ((isFocusOwner() \|\| (containsFocus() && !isLightweight())) &&
	KeyboardFocusManager.isAutoFocusTransferEnabled())
	{
	// Don't clear the global focus owner. If transferFocus
	// fails, we want the focus to stay on the disabled
	// Component so that keyboard traversal, et. al. still
	// makes sense to the user.
	transferFocus(false);
	}
	ComponentPeer peer = this.peer;
	if (peer != null) {
	peer.setEnabled(false);
	if (visible && !getRecursivelyVisibleBounds().isEmpty()) {
	updateCursorImmediately();
	}
	}
	}
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.ENABLED);
	}
	}
	}

	/**
	* Returns true if this component is painted to an offscreen image
	* ("buffer") that's copied to the screen later. Component
	* subclasses that support double buffering should override this
	* method to return true if double buffering is enabled.
	*
	* @return false by default
	*/
	public boolean isDoubleBuffered() {
	return false;
	}

	/**
	* Enables or disables input method support for this component. If input
	* method support is enabled and the component also processes key events,
	* incoming events are offered to
	* the current input method and will only be processed by the component or
	* dispatched to its listeners if the input method does not consume them.
	* By default, input method support is enabled.
	*
	* @param enable true to enable, false to disable
	* @see #processKeyEvent
	* @since 1.2
	*/
	public void enableInputMethods(boolean enable) {
	if (enable) {
	if ((eventMask & AWTEvent.INPUT_METHODS_ENABLED_MASK) != 0)
	return;

	// If this component already has focus, then activate the
	// input method by dispatching a synthesized focus gained
	// event.
	if (isFocusOwner()) {
	InputContext inputContext = getInputContext();
	if (inputContext != null) {
	FocusEvent focusGainedEvent =
	new FocusEvent(this, FocusEvent.FOCUS_GAINED);
	inputContext.dispatchEvent(focusGainedEvent);
	}
	}

	eventMask \|= AWTEvent.INPUT_METHODS_ENABLED_MASK;
	} else {
	if ((eventMask & AWTEvent.INPUT_METHODS_ENABLED_MASK) != 0) {
	InputContext inputContext = getInputContext();
	if (inputContext != null) {
	inputContext.endComposition();
	inputContext.removeNotify(this);
	}
	}
	eventMask &= ~AWTEvent.INPUT_METHODS_ENABLED_MASK;
	}
	}

	/**
	* Shows or hides this component depending on the value of parameter
	* <code>b</code>.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param b if <code>true</code>, shows this component;
	* otherwise, hides this component
	* @see #isVisible
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setVisible(boolean b) {
	show(b);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setVisible(boolean)</code>.
	*/
	@Deprecated
	public void show() {
	if (!visible) {
	synchronized (getTreeLock()) {
	visible = true;
	mixOnShowing();
	ComponentPeer peer = this.peer;
	if (peer != null) {
	peer.setVisible(true);
	createHierarchyEvents(HierarchyEvent.HIERARCHY_CHANGED,
	this, parent,
	HierarchyEvent.SHOWING_CHANGED,
	Toolkit.enabledOnToolkit(AWTEvent.HIERARCHY_EVENT_MASK));
	if (peer instanceof LightweightPeer) {
	repaint();
	}
	updateCursorImmediately();
	}

	if (componentListener != null \|\|
	(eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0 \|\|
	Toolkit.enabledOnToolkit(AWTEvent.COMPONENT_EVENT_MASK)) {
	ComponentEvent e = new ComponentEvent(this,
	ComponentEvent.COMPONENT_SHOWN);
	Toolkit.getEventQueue().postEvent(e);
	}
	}
	Container parent = this.parent;
	if (parent != null) {
	parent.invalidate();
	}
	}
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setVisible(boolean)</code>.
	*/
	@Deprecated
	public void show(boolean b) {
	if (b) {
	show();
	} else {
	hide();
	}
	}

	boolean containsFocus() {
	return isFocusOwner();
	}

	void clearMostRecentFocusOwnerOnHide() {
	KeyboardFocusManager.clearMostRecentFocusOwner(this);
	}

	void clearCurrentFocusCycleRootOnHide() {
	/* do nothing */
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setVisible(boolean)</code>.
	*/
	@Deprecated
	public void hide() {
	isPacked = false;

	if (visible) {
	clearCurrentFocusCycleRootOnHide();
	clearMostRecentFocusOwnerOnHide();
	synchronized (getTreeLock()) {
	visible = false;
	mixOnHiding(isLightweight());
	if (containsFocus() && KeyboardFocusManager.isAutoFocusTransferEnabled()) {
	transferFocus(true);
	}
	ComponentPeer peer = this.peer;
	if (peer != null) {
	peer.setVisible(false);
	createHierarchyEvents(HierarchyEvent.HIERARCHY_CHANGED,
	this, parent,
	HierarchyEvent.SHOWING_CHANGED,
	Toolkit.enabledOnToolkit(AWTEvent.HIERARCHY_EVENT_MASK));
	if (peer instanceof LightweightPeer) {
	repaint();
	}
	updateCursorImmediately();
	}
	if (componentListener != null \|\|
	(eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0 \|\|
	Toolkit.enabledOnToolkit(AWTEvent.COMPONENT_EVENT_MASK)) {
	ComponentEvent e = new ComponentEvent(this,
	ComponentEvent.COMPONENT_HIDDEN);
	Toolkit.getEventQueue().postEvent(e);
	}
	}
	Container parent = this.parent;
	if (parent != null) {
	parent.invalidate();
	}
	}
	}

	/**
	* Gets the foreground color of this component.
	* @return this component's foreground color; if this component does
	* not have a foreground color, the foreground color of its parent
	* is returned
	* @see #setForeground
	* @since JDK1.0
	* @beaninfo
	* bound: true
	*/
	@Transient
	public Color getForeground() {
	Color foreground = this.foreground;
	if (foreground != null) {
	return foreground;
	}
	Container parent = this.parent;
	return (parent != null) ? parent.getForeground() : null;
	}

	/**
	* Sets the foreground color of this component.
	* @param c the color to become this component's
	* foreground color; if this parameter is <code>null</code>
	* then this component will inherit
	* the foreground color of its parent
	* @see #getForeground
	* @since JDK1.0
	*/
	public void setForeground(Color c) {
	Color oldColor = foreground;
	ComponentPeer peer = this.peer;
	foreground = c;
	if (peer != null) {
	c = getForeground();
	if (c != null) {
	peer.setForeground(c);
	}
	}
	// This is a bound property, so report the change to
	// any registered listeners. (Cheap if there are none.)
	firePropertyChange("foreground", oldColor, c);
	}

	/**
	* Returns whether the foreground color has been explicitly set for this
	* Component. If this method returns <code>false</code>, this Component is
	* inheriting its foreground color from an ancestor.
	*
	* @return <code>true</code> if the foreground color has been explicitly
	* set for this Component; <code>false</code> otherwise.
	* @since 1.4
	*/
	public boolean isForegroundSet() {
	return (foreground != null);
	}

	/**
	* Gets the background color of this component.
	* @return this component's background color; if this component does
	* not have a background color,
	* the background color of its parent is returned
	* @see #setBackground
	* @since JDK1.0
	*/
	@Transient
	public Color getBackground() {
	Color background = this.background;
	if (background != null) {
	return background;
	}
	Container parent = this.parent;
	return (parent != null) ? parent.getBackground() : null;
	}

	/**
	* Sets the background color of this component.
	* <p>
	* The background color affects each component differently and the
	* parts of the component that are affected by the background color
	* may differ between operating systems.
	*
	* @param c the color to become this component's color;
	* if this parameter is <code>null</code>, then this
	* component will inherit the background color of its parent
	* @see #getBackground
	* @since JDK1.0
	* @beaninfo
	* bound: true
	*/
	public void setBackground(Color c) {
	Color oldColor = background;
	ComponentPeer peer = this.peer;
	background = c;
	if (peer != null) {
	c = getBackground();
	if (c != null) {
	peer.setBackground(c);
	}
	}
	// This is a bound property, so report the change to
	// any registered listeners. (Cheap if there are none.)
	firePropertyChange("background", oldColor, c);
	}

	/**
	* Returns whether the background color has been explicitly set for this
	* Component. If this method returns <code>false</code>, this Component is
	* inheriting its background color from an ancestor.
	*
	* @return <code>true</code> if the background color has been explicitly
	* set for this Component; <code>false</code> otherwise.
	* @since 1.4
	*/
	public boolean isBackgroundSet() {
	return (background != null);
	}

	/**
	* Gets the font of this component.
	* @return this component's font; if a font has not been set
	* for this component, the font of its parent is returned
	* @see #setFont
	* @since JDK1.0
	*/
	@Transient
	public Font getFont() {
	return getFont_NoClientCode();
	}

	// NOTE: This method may be called by privileged threads.
	// This functionality is implemented in a package-private method
	// to insure that it cannot be overridden by client subclasses.
	// DO NOT INVOKE CLIENT CODE ON THIS THREAD!
	final Font getFont_NoClientCode() {
	Font font = this.font;
	if (font != null) {
	return font;
	}
	Container parent = this.parent;
	return (parent != null) ? parent.getFont_NoClientCode() : null;
	}

	/**
	* Sets the font of this component.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param f the font to become this component's font;
	* if this parameter is <code>null</code> then this
	* component will inherit the font of its parent
	* @see #getFont
	* @see #invalidate
	* @since JDK1.0
	* @beaninfo
	* bound: true
	*/
	public void setFont(Font f) {
	Font oldFont, newFont;
	synchronized(getTreeLock()) {
	oldFont = font;
	newFont = font = f;
	ComponentPeer peer = this.peer;
	if (peer != null) {
	f = getFont();
	if (f != null) {
	peer.setFont(f);
	peerFont = f;
	}
	}
	}
	// This is a bound property, so report the change to
	// any registered listeners. (Cheap if there are none.)
	firePropertyChange("font", oldFont, newFont);

	// This could change the preferred size of the Component.
	// Fix for 6213660. Should compare old and new fonts and do not
	// call invalidate() if they are equal.
	if (f != oldFont && (oldFont == null \|\|
	!oldFont.equals(f))) {
	invalidateIfValid();
	}
	}

	/**
	* Returns whether the font has been explicitly set for this Component. If
	* this method returns <code>false</code>, this Component is inheriting its
	* font from an ancestor.
	*
	* @return <code>true</code> if the font has been explicitly set for this
	* Component; <code>false</code> otherwise.
	* @since 1.4
	*/
	public boolean isFontSet() {
	return (font != null);
	}

	/**
	* Gets the locale of this component.
	* @return this component's locale; if this component does not
	* have a locale, the locale of its parent is returned
	* @see #setLocale
	* @exception IllegalComponentStateException if the <code>Component</code>
	* does not have its own locale and has not yet been added to
	* a containment hierarchy such that the locale can be determined
	* from the containing parent
	* @since JDK1.1
	*/
	public Locale getLocale() {
	Locale locale = this.locale;
	if (locale != null) {
	return locale;
	}
	Container parent = this.parent;

	if (parent == null) {
	throw new IllegalComponentStateException("This component must have a parent in order to determine its locale");
	} else {
	return parent.getLocale();
	}
	}

	/**
	* Sets the locale of this component. This is a bound property.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param l the locale to become this component's locale
	* @see #getLocale
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setLocale(Locale l) {
	Locale oldValue = locale;
	locale = l;

	// This is a bound property, so report the change to
	// any registered listeners. (Cheap if there are none.)
	firePropertyChange("locale", oldValue, l);

	// This could change the preferred size of the Component.
	invalidateIfValid();
	}

	/**
	* Gets the instance of <code>ColorModel</code> used to display
	* the component on the output device.
	* @return the color model used by this component
	* @see java.awt.image.ColorModel
	* @see java.awt.peer.ComponentPeer#getColorModel()
	* @see Toolkit#getColorModel()
	* @since JDK1.0
	*/
	public ColorModel getColorModel() {
	ComponentPeer peer = this.peer;
	if ((peer != null) && ! (peer instanceof LightweightPeer)) {
	return peer.getColorModel();
	} else if (GraphicsEnvironment.isHeadless()) {
	return ColorModel.getRGBdefault();
	} // else
	return getToolkit().getColorModel();
	}

	/**
	* Gets the location of this component in the form of a
	* point specifying the component's top-left corner.
	* The location will be relative to the parent's coordinate space.
	* <p>
	* Due to the asynchronous nature of native event handling, this
	* method can return outdated values (for instance, after several calls
	* of <code>setLocation()</code> in rapid succession). For this
	* reason, the recommended method of obtaining a component's position is
	* within <code>java.awt.event.ComponentListener.componentMoved()</code>,
	* which is called after the operating system has finished moving the
	* component.
	* </p>
	* @return an instance of <code>Point</code> representing
	* the top-left corner of the component's bounds in
	* the coordinate space of the component's parent
	* @see #setLocation
	* @see #getLocationOnScreen
	* @since JDK1.1
	*/
	public Point getLocation() {
	return location();
	}

	/**
	* Gets the location of this component in the form of a point
	* specifying the component's top-left corner in the screen's
	* coordinate space.
	* @return an instance of <code>Point</code> representing
	* the top-left corner of the component's bounds in the
	* coordinate space of the screen
	* @throws IllegalComponentStateException if the
	* component is not showing on the screen
	* @see #setLocation
	* @see #getLocation
	*/
	public Point getLocationOnScreen() {
	synchronized (getTreeLock()) {
	return getLocationOnScreen_NoTreeLock();
	}
	}

	/*
	* a package private version of getLocationOnScreen
	* used by GlobalCursormanager to update cursor
	*/
	final Point getLocationOnScreen_NoTreeLock() {

	if (peer != null && isShowing()) {
	if (peer instanceof LightweightPeer) {
	// lightweight component location needs to be translated
	// relative to a native component.
	Container host = getNativeContainer();
	Point pt = host.peer.getLocationOnScreen();
	for(Component c = this; c != host; c = c.getParent()) {
	pt.x += c.x;
	pt.y += c.y;
	}
	return pt;
	} else {
	Point pt = peer.getLocationOnScreen();
	return pt;
	}
	} else {
	throw new IllegalComponentStateException("component must be showing on the screen to determine its location");
	}
	}


	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>getLocation()</code>.
	*/
	@Deprecated
	public Point location() {
	return location_NoClientCode();
	}

	private Point location_NoClientCode() {
	return new Point(x, y);
	}

	/**
	* Moves this component to a new location. The top-left corner of
	* the new location is specified by the <code>x</code> and <code>y</code>
	* parameters in the coordinate space of this component's parent.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param x the <i>x</i>-coordinate of the new location's
	* top-left corner in the parent's coordinate space
	* @param y the <i>y</i>-coordinate of the new location's
	* top-left corner in the parent's coordinate space
	* @see #getLocation
	* @see #setBounds
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setLocation(int x, int y) {
	move(x, y);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setLocation(int, int)</code>.
	*/
	@Deprecated
	public void move(int x, int y) {
	synchronized(getTreeLock()) {
	setBoundsOp(ComponentPeer.SET_LOCATION);
	setBounds(x, y, width, height);
	}
	}

	/**
	* Moves this component to a new location. The top-left corner of
	* the new location is specified by point <code>p</code>. Point
	* <code>p</code> is given in the parent's coordinate space.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param p the point defining the top-left corner
	* of the new location, given in the coordinate space of this
	* component's parent
	* @see #getLocation
	* @see #setBounds
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setLocation(Point p) {
	setLocation(p.x, p.y);
	}

	/**
	* Returns the size of this component in the form of a
	* <code>Dimension</code> object. The <code>height</code>
	* field of the <code>Dimension</code> object contains
	* this component's height, and the <code>width</code>
	* field of the <code>Dimension</code> object contains
	* this component's width.
	* @return a <code>Dimension</code> object that indicates the
	* size of this component
	* @see #setSize
	* @since JDK1.1
	*/
	public Dimension getSize() {
	return size();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>getSize()</code>.
	*/
	@Deprecated
	public Dimension size() {
	return new Dimension(width, height);
	}

	/**
	* Resizes this component so that it has width <code>width</code>
	* and height <code>height</code>.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param width the new width of this component in pixels
	* @param height the new height of this component in pixels
	* @see #getSize
	* @see #setBounds
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setSize(int width, int height) {
	resize(width, height);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setSize(int, int)</code>.
	*/
	@Deprecated
	public void resize(int width, int height) {
	synchronized(getTreeLock()) {
	setBoundsOp(ComponentPeer.SET_SIZE);
	setBounds(x, y, width, height);
	}
	}

	/**
	* Resizes this component so that it has width <code>d.width</code>
	* and height <code>d.height</code>.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param d the dimension specifying the new size
	* of this component
	* @throws NullPointerException if {@code d} is {@code null}
	* @see #setSize
	* @see #setBounds
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setSize(Dimension d) {
	resize(d);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setSize(Dimension)</code>.
	*/
	@Deprecated
	public void resize(Dimension d) {
	setSize(d.width, d.height);
	}

	/**
	* Gets the bounds of this component in the form of a
	* <code>Rectangle</code> object. The bounds specify this
	* component's width, height, and location relative to
	* its parent.
	* @return a rectangle indicating this component's bounds
	* @see #setBounds
	* @see #getLocation
	* @see #getSize
	*/
	public Rectangle getBounds() {
	return bounds();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>getBounds()</code>.
	*/
	@Deprecated
	public Rectangle bounds() {
	return new Rectangle(x, y, width, height);
	}

	/**
	* Moves and resizes this component. The new location of the top-left
	* corner is specified by <code>x</code> and <code>y</code>, and the
	* new size is specified by <code>width</code> and <code>height</code>.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param x the new <i>x</i>-coordinate of this component
	* @param y the new <i>y</i>-coordinate of this component
	* @param width the new <code>width</code> of this component
	* @param height the new <code>height</code> of this
	* component
	* @see #getBounds
	* @see #setLocation(int, int)
	* @see #setLocation(Point)
	* @see #setSize(int, int)
	* @see #setSize(Dimension)
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setBounds(int x, int y, int width, int height) {
	reshape(x, y, width, height);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>setBounds(int, int, int, int)</code>.
	*/
	@Deprecated
	public void reshape(int x, int y, int width, int height) {
	synchronized (getTreeLock()) {
	try {
	setBoundsOp(ComponentPeer.SET_BOUNDS);
	boolean resized = (this.width != width) \|\| (this.height != height);
	boolean moved = (this.x != x) \|\| (this.y != y);
	if (!resized && !moved) {
	return;
	}
	int oldX = this.x;
	int oldY = this.y;
	int oldWidth = this.width;
	int oldHeight = this.height;
	this.x = x;
	this.y = y;
	this.width = width;
	this.height = height;

	if (resized) {
	isPacked = false;
	}

	boolean needNotify = true;
	mixOnReshaping();
	if (peer != null) {
	// LightwightPeer is an empty stub so can skip peer.reshape
	if (!(peer instanceof LightweightPeer)) {
	reshapeNativePeer(x, y, width, height, getBoundsOp());
	// Check peer actualy changed coordinates
	resized = (oldWidth != this.width) \|\| (oldHeight != this.height);
	moved = (oldX != this.x) \|\| (oldY != this.y);
	// fix for 5025858: do not send ComponentEvents for toplevel
	// windows here as it is done from peer or native code when
	// the window is really resized or moved, otherwise some
	// events may be sent twice
	if (this instanceof Window) {
	needNotify = false;
	}
	}
	if (resized) {
	invalidate();
	}
	if (parent != null) {
	parent.invalidateIfValid();
	}
	}
	if (needNotify) {
	notifyNewBounds(resized, moved);
	}
	repaintParentIfNeeded(oldX, oldY, oldWidth, oldHeight);
	} finally {
	setBoundsOp(ComponentPeer.RESET_OPERATION);
	}
	}
	}

	private void repaintParentIfNeeded(int oldX, int oldY, int oldWidth,
	int oldHeight)
	{
	if (parent != null && peer instanceof LightweightPeer && isShowing()) {
	// Have the parent redraw the area this component occupied.
	parent.repaint(oldX, oldY, oldWidth, oldHeight);
	// Have the parent redraw the area this component now occupies.
	repaint();
	}
	}

	private void reshapeNativePeer(int x, int y, int width, int height, int op) {
	// native peer might be offset by more than direct
	// parent since parent might be lightweight.
	int nativeX = x;
	int nativeY = y;
	for (Component c = parent;
	(c != null) && (c.peer instanceof LightweightPeer);
	c = c.parent)
	{
	nativeX += c.x;
	nativeY += c.y;
	}
	peer.setBounds(nativeX, nativeY, width, height, op);
	}

	@SuppressWarnings("deprecation")
	private void notifyNewBounds(boolean resized, boolean moved) {
	if (componentListener != null
	\|\| (eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0
	\|\| Toolkit.enabledOnToolkit(AWTEvent.COMPONENT_EVENT_MASK))
	{
	if (resized) {
	ComponentEvent e = new ComponentEvent(this,
	ComponentEvent.COMPONENT_RESIZED);
	Toolkit.getEventQueue().postEvent(e);
	}
	if (moved) {
	ComponentEvent e = new ComponentEvent(this,
	ComponentEvent.COMPONENT_MOVED);
	Toolkit.getEventQueue().postEvent(e);
	}
	} else {
	if (this instanceof Container && ((Container)this).countComponents() > 0) {
	boolean enabledOnToolkit =
	Toolkit.enabledOnToolkit(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK);
	if (resized) {

	((Container)this).createChildHierarchyEvents(
	HierarchyEvent.ANCESTOR_RESIZED, 0, enabledOnToolkit);
	}
	if (moved) {
	((Container)this).createChildHierarchyEvents(
	HierarchyEvent.ANCESTOR_MOVED, 0, enabledOnToolkit);
	}
	}
	}
	}

	/**
	* Moves and resizes this component to conform to the new
	* bounding rectangle <code>r</code>. This component's new
	* position is specified by <code>r.x</code> and <code>r.y</code>,
	* and its new size is specified by <code>r.width</code> and
	* <code>r.height</code>
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @param r the new bounding rectangle for this component
	* @throws NullPointerException if {@code r} is {@code null}
	* @see #getBounds
	* @see #setLocation(int, int)
	* @see #setLocation(Point)
	* @see #setSize(int, int)
	* @see #setSize(Dimension)
	* @see #invalidate
	* @since JDK1.1
	*/
	public void setBounds(Rectangle r) {
	setBounds(r.x, r.y, r.width, r.height);
	}


	/**
	* Returns the current x coordinate of the components origin.
	* This method is preferable to writing
	* <code>component.getBounds().x</code>,
	* or <code>component.getLocation().x</code> because it doesn't
	* cause any heap allocations.
	*
	* @return the current x coordinate of the components origin
	* @since 1.2
	*/
	public int getX() {
	return x;
	}


	/**
	* Returns the current y coordinate of the components origin.
	* This method is preferable to writing
	* <code>component.getBounds().y</code>,
	* or <code>component.getLocation().y</code> because it
	* doesn't cause any heap allocations.
	*
	* @return the current y coordinate of the components origin
	* @since 1.2
	*/
	public int getY() {
	return y;
	}


	/**
	* Returns the current width of this component.
	* This method is preferable to writing
	* <code>component.getBounds().width</code>,
	* or <code>component.getSize().width</code> because it
	* doesn't cause any heap allocations.
	*
	* @return the current width of this component
	* @since 1.2
	*/
	public int getWidth() {
	return width;
	}


	/**
	* Returns the current height of this component.
	* This method is preferable to writing
	* <code>component.getBounds().height</code>,
	* or <code>component.getSize().height</code> because it
	* doesn't cause any heap allocations.
	*
	* @return the current height of this component
	* @since 1.2
	*/
	public int getHeight() {
	return height;
	}

	/**
	* Stores the bounds of this component into "return value" <b>rv</b> and
	* return <b>rv</b>. If rv is <code>null</code> a new
	* <code>Rectangle</code> is allocated.
	* This version of <code>getBounds</code> is useful if the caller
	* wants to avoid allocating a new <code>Rectangle</code> object
	* on the heap.
	*
	* @param rv the return value, modified to the components bounds
	* @return rv
	*/
	public Rectangle getBounds(Rectangle rv) {
	if (rv == null) {
	return new Rectangle(getX(), getY(), getWidth(), getHeight());
	}
	else {
	rv.setBounds(getX(), getY(), getWidth(), getHeight());
	return rv;
	}
	}

	/**
	* Stores the width/height of this component into "return value" <b>rv</b>
	* and return <b>rv</b>. If rv is <code>null</code> a new
	* <code>Dimension</code> object is allocated. This version of
	* <code>getSize</code> is useful if the caller wants to avoid
	* allocating a new <code>Dimension</code> object on the heap.
	*
	* @param rv the return value, modified to the components size
	* @return rv
	*/
	public Dimension getSize(Dimension rv) {
	if (rv == null) {
	return new Dimension(getWidth(), getHeight());
	}
	else {
	rv.setSize(getWidth(), getHeight());
	return rv;
	}
	}

	/**
	* Stores the x,y origin of this component into "return value" <b>rv</b>
	* and return <b>rv</b>. If rv is <code>null</code> a new
	* <code>Point</code> is allocated.
	* This version of <code>getLocation</code> is useful if the
	* caller wants to avoid allocating a new <code>Point</code>
	* object on the heap.
	*
	* @param rv the return value, modified to the components location
	* @return rv
	*/
	public Point getLocation(Point rv) {
	if (rv == null) {
	return new Point(getX(), getY());
	}
	else {
	rv.setLocation(getX(), getY());
	return rv;
	}
	}

	/**
	* Returns true if this component is completely opaque, returns
	* false by default.
	* <p>
	* An opaque component paints every pixel within its
	* rectangular region. A non-opaque component paints only some of
	* its pixels, allowing the pixels underneath it to "show through".
	* A component that does not fully paint its pixels therefore
	* provides a degree of transparency.
	* <p>
	* Subclasses that guarantee to always completely paint their
	* contents should override this method and return true.
	*
	* @return true if this component is completely opaque
	* @see #isLightweight
	* @since 1.2
	*/
	public boolean isOpaque() {
	if (getPeer() == null) {
	return false;
	}
	else {
	return !isLightweight();
	}
	}


	/**
	* A lightweight component doesn't have a native toolkit peer.
	* Subclasses of <code>Component</code> and <code>Container</code>,
	* other than the ones defined in this package like <code>Button</code>
	* or <code>Scrollbar</code>, are lightweight.
	* All of the Swing components are lightweights.
	* <p>
	* This method will always return <code>false</code> if this component
	* is not displayable because it is impossible to determine the
	* weight of an undisplayable component.
	*
	* @return true if this component has a lightweight peer; false if
	* it has a native peer or no peer
	* @see #isDisplayable
	* @since 1.2
	*/
	public boolean isLightweight() {
	return getPeer() instanceof LightweightPeer;
	}


	/**
	* Sets the preferred size of this component to a constant
	* value. Subsequent calls to <code>getPreferredSize</code> will always
	* return this value. Setting the preferred size to <code>null</code>
	* restores the default behavior.
	*
	* @param preferredSize The new preferred size, or null
	* @see #getPreferredSize
	* @see #isPreferredSizeSet
	* @since 1.5
	*/
	public void setPreferredSize(Dimension preferredSize) {
	Dimension old;
	// If the preferred size was set, use it as the old value, otherwise
	// use null to indicate we didn't previously have a set preferred
	// size.
	if (prefSizeSet) {
	old = this.prefSize;
	}
	else {
	old = null;
	}
	this.prefSize = preferredSize;
	prefSizeSet = (preferredSize != null);
	firePropertyChange("preferredSize", old, preferredSize);
	}


	/**
	* Returns true if the preferred size has been set to a
	* non-<code>null</code> value otherwise returns false.
	*
	* @return true if <code>setPreferredSize</code> has been invoked
	* with a non-null value.
	* @since 1.5
	*/
	public boolean isPreferredSizeSet() {
	return prefSizeSet;
	}


	/**
	* Gets the preferred size of this component.
	* @return a dimension object indicating this component's preferred size
	* @see #getMinimumSize
	* @see LayoutManager
	*/
	public Dimension getPreferredSize() {
	return preferredSize();
	}


	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>getPreferredSize()</code>.
	*/
	@Deprecated
	public Dimension preferredSize() {
	/* Avoid grabbing the lock if a reasonable cached size value
	* is available.
	*/
	Dimension dim = prefSize;
	if (dim == null \|\| !(isPreferredSizeSet() \|\| isValid())) {
	synchronized (getTreeLock()) {
	prefSize = (peer != null) ?
	peer.getPreferredSize() :
	getMinimumSize();
	dim = prefSize;
	}
	}
	return new Dimension(dim);
	}

	/**
	* Sets the minimum size of this component to a constant
	* value. Subsequent calls to <code>getMinimumSize</code> will always
	* return this value. Setting the minimum size to <code>null</code>
	* restores the default behavior.
	*
	* @param minimumSize the new minimum size of this component
	* @see #getMinimumSize
	* @see #isMinimumSizeSet
	* @since 1.5
	*/
	public void setMinimumSize(Dimension minimumSize) {
	Dimension old;
	// If the minimum size was set, use it as the old value, otherwise
	// use null to indicate we didn't previously have a set minimum
	// size.
	if (minSizeSet) {
	old = this.minSize;
	}
	else {
	old = null;
	}
	this.minSize = minimumSize;
	minSizeSet = (minimumSize != null);
	firePropertyChange("minimumSize", old, minimumSize);
	}

	/**
	* Returns whether or not <code>setMinimumSize</code> has been
	* invoked with a non-null value.
	*
	* @return true if <code>setMinimumSize</code> has been invoked with a
	* non-null value.
	* @since 1.5
	*/
	public boolean isMinimumSizeSet() {
	return minSizeSet;
	}

	/**
	* Gets the minimum size of this component.
	* @return a dimension object indicating this component's minimum size
	* @see #getPreferredSize
	* @see LayoutManager
	*/
	public Dimension getMinimumSize() {
	return minimumSize();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>getMinimumSize()</code>.
	*/
	@Deprecated
	public Dimension minimumSize() {
	/* Avoid grabbing the lock if a reasonable cached size value
	* is available.
	*/
	Dimension dim = minSize;
	if (dim == null \|\| !(isMinimumSizeSet() \|\| isValid())) {
	synchronized (getTreeLock()) {
	minSize = (peer != null) ?
	peer.getMinimumSize() :
	size();
	dim = minSize;
	}
	}
	return new Dimension(dim);
	}

	/**
	* Sets the maximum size of this component to a constant
	* value. Subsequent calls to <code>getMaximumSize</code> will always
	* return this value. Setting the maximum size to <code>null</code>
	* restores the default behavior.
	*
	* @param maximumSize a <code>Dimension</code> containing the
	* desired maximum allowable size
	* @see #getMaximumSize
	* @see #isMaximumSizeSet
	* @since 1.5
	*/
	public void setMaximumSize(Dimension maximumSize) {
	// If the maximum size was set, use it as the old value, otherwise
	// use null to indicate we didn't previously have a set maximum
	// size.
	Dimension old;
	if (maxSizeSet) {
	old = this.maxSize;
	}
	else {
	old = null;
	}
	this.maxSize = maximumSize;
	maxSizeSet = (maximumSize != null);
	firePropertyChange("maximumSize", old, maximumSize);
	}

	/**
	* Returns true if the maximum size has been set to a non-<code>null</code>
	* value otherwise returns false.
	*
	* @return true if <code>maximumSize</code> is non-<code>null</code>,
	* false otherwise
	* @since 1.5
	*/
	public boolean isMaximumSizeSet() {
	return maxSizeSet;
	}

	/**
	* Gets the maximum size of this component.
	* @return a dimension object indicating this component's maximum size
	* @see #getMinimumSize
	* @see #getPreferredSize
	* @see LayoutManager
	*/
	public Dimension getMaximumSize() {
	if (isMaximumSizeSet()) {
	return new Dimension(maxSize);
	}
	return new Dimension(Short.MAX_VALUE, Short.MAX_VALUE);
	}

	/**
	* Returns the alignment along the x axis. This specifies how
	* the component would like to be aligned relative to other
	* components. The value should be a number between 0 and 1
	* where 0 represents alignment along the origin, 1 is aligned
	* the furthest away from the origin, 0.5 is centered, etc.
	*/
	public float getAlignmentX() {
	return CENTER_ALIGNMENT;
	}

	/**
	* Returns the alignment along the y axis. This specifies how
	* the component would like to be aligned relative to other
	* components. The value should be a number between 0 and 1
	* where 0 represents alignment along the origin, 1 is aligned
	* the furthest away from the origin, 0.5 is centered, etc.
	*/
	public float getAlignmentY() {
	return CENTER_ALIGNMENT;
	}

	/**
	* Returns the baseline. The baseline is measured from the top of
	* the component. This method is primarily meant for
	* <code>LayoutManager</code>s to align components along their
	* baseline. A return value less than 0 indicates this component
	* does not have a reasonable baseline and that
	* <code>LayoutManager</code>s should not align this component on
	* its baseline.
	* <p>
	* The default implementation returns -1. Subclasses that support
	* baseline should override appropriately. If a value >= 0 is
	* returned, then the component has a valid baseline for any
	* size >= the minimum size and <code>getBaselineResizeBehavior</code>
	* can be used to determine how the baseline changes with size.
	*
	* @param width the width to get the baseline for
	* @param height the height to get the baseline for
	* @return the baseline or < 0 indicating there is no reasonable
	* baseline
	* @throws IllegalArgumentException if width or height is < 0
	* @see #getBaselineResizeBehavior
	* @see java.awt.FontMetrics
	* @since 1.6
	*/
	public int getBaseline(int width, int height) {
	if (width < 0 \|\| height < 0) {
	throw new IllegalArgumentException(
	"Width and height must be >= 0");
	}
	return -1;
	}

	/**
	* Returns an enum indicating how the baseline of the component
	* changes as the size changes. This method is primarily meant for
	* layout managers and GUI builders.
	* <p>
	* The default implementation returns
	* <code>BaselineResizeBehavior.OTHER</code>. Subclasses that have a
	* baseline should override appropriately. Subclasses should
	* never return <code>null</code>; if the baseline can not be
	* calculated return <code>BaselineResizeBehavior.OTHER</code>. Callers
	* should first ask for the baseline using
	* <code>getBaseline</code> and if a value >= 0 is returned use
	* this method. It is acceptable for this method to return a
	* value other than <code>BaselineResizeBehavior.OTHER</code> even if
	* <code>getBaseline</code> returns a value less than 0.
	*
	* @return an enum indicating how the baseline changes as the component
	* size changes
	* @see #getBaseline(int, int)
	* @since 1.6
	*/
	public BaselineResizeBehavior getBaselineResizeBehavior() {
	return BaselineResizeBehavior.OTHER;
	}

	/**
	* Prompts the layout manager to lay out this component. This is
	* usually called when the component (more specifically, container)
	* is validated.
	* @see #validate
	* @see LayoutManager
	*/
	public void doLayout() {
	layout();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>doLayout()</code>.
	*/
	@Deprecated
	public void layout() {
	}

	/**
	* Validates this component.
	* <p>
	* The meaning of the term <i>validating</i> is defined by the ancestors of
	* this class. See {@link Container#validate} for more details.
	*
	* @see #invalidate
	* @see #doLayout()
	* @see LayoutManager
	* @see Container#validate
	* @since JDK1.0
	*/
	public void validate() {
	synchronized (getTreeLock()) {
	ComponentPeer peer = this.peer;
	boolean wasValid = isValid();
	if (!wasValid && peer != null) {
	Font newfont = getFont();
	Font oldfont = peerFont;
	if (newfont != oldfont && (oldfont == null
	\|\| !oldfont.equals(newfont))) {
	peer.setFont(newfont);
	peerFont = newfont;
	}
	peer.layout();
	}
	valid = true;
	if (!wasValid) {
	mixOnValidating();
	}
	}
	}

	/**
	* Invalidates this component and its ancestors.
	* <p>
	* By default, all the ancestors of the component up to the top-most
	* container of the hierarchy are marked invalid. If the {@code
	* java.awt.smartInvalidate} system property is set to {@code true},
	* invalidation stops on the nearest validate root of this component.
	* Marking a container <i>invalid</i> indicates that the container needs to
	* be laid out.
	* <p>
	* This method is called automatically when any layout-related information
	* changes (e.g. setting the bounds of the component, or adding the
	* component to a container).
	* <p>
	* This method might be called often, so it should work fast.
	*
	* @see #validate
	* @see #doLayout
	* @see LayoutManager
	* @see java.awt.Container#isValidateRoot
	* @since JDK1.0
	*/
	public void invalidate() {
	synchronized (getTreeLock()) {
	/* Nullify cached layout and size information.
	* For efficiency, propagate invalidate() upwards only if
	* some other component hasn't already done so first.
	*/
	valid = false;
	if (!isPreferredSizeSet()) {
	prefSize = null;
	}
	if (!isMinimumSizeSet()) {
	minSize = null;
	}
	if (!isMaximumSizeSet()) {
	maxSize = null;
	}
	invalidateParent();
	}
	}

	/**
	* Invalidates the parent of this component if any.
	*
	* This method MUST BE invoked under the TreeLock.
	*/
	void invalidateParent() {
	if (parent != null) {
	parent.invalidateIfValid();
	}
	}

	/** Invalidates the component unless it is already invalid.
	*/
	final void invalidateIfValid() {
	if (isValid()) {
	invalidate();
	}
	}

	/**
	* Revalidates the component hierarchy up to the nearest validate root.
	* <p>
	* This method first invalidates the component hierarchy starting from this
	* component up to the nearest validate root. Afterwards, the component
	* hierarchy is validated starting from the nearest validate root.
	* <p>
	* This is a convenience method supposed to help application developers
	* avoid looking for validate roots manually. Basically, it's equivalent to
	* first calling the {@link #invalidate()} method on this component, and
	* then calling the {@link #validate()} method on the nearest validate
	* root.
	*
	* @see Container#isValidateRoot
	* @since 1.7
	*/
	public void revalidate() {
	revalidateSynchronously();
	}

	/**
	* Revalidates the component synchronously.
	*/
	final void revalidateSynchronously() {
	synchronized (getTreeLock()) {
	invalidate();

	Container root = getContainer();
	if (root == null) {
	// There's no parents. Just validate itself.
	validate();
	} else {
	while (!root.isValidateRoot()) {
	if (root.getContainer() == null) {
	// If there's no validate roots, we'll validate the
	// topmost container
	break;
	}

	root = root.getContainer();
	}

	root.validate();
	}
	}
	}

	/**
	* Creates a graphics context for this component. This method will
	* return <code>null</code> if this component is currently not
	* displayable.
	* @return a graphics context for this component, or <code>null</code>
	* if it has none
	* @see #paint
	* @since JDK1.0
	*/
	public Graphics getGraphics() {
	if (peer instanceof LightweightPeer) {
	// This is for a lightweight component, need to
	// translate coordinate spaces and clip relative
	// to the parent.
	if (parent == null) return null;
	Graphics g = parent.getGraphics();
	if (g == null) return null;
	if (g instanceof ConstrainableGraphics) {
	((ConstrainableGraphics) g).constrain(x, y, width, height);
	} else {
	g.translate(x,y);
	g.setClip(0, 0, width, height);
	}
	g.setFont(getFont());
	return g;
	} else {
	ComponentPeer peer = this.peer;
	return (peer != null) ? peer.getGraphics() : null;
	}
	}

	final Graphics getGraphics_NoClientCode() {
	ComponentPeer peer = this.peer;
	if (peer instanceof LightweightPeer) {
	// This is for a lightweight component, need to
	// translate coordinate spaces and clip relative
	// to the parent.
	Container parent = this.parent;
	if (parent == null) return null;
	Graphics g = parent.getGraphics_NoClientCode();
	if (g == null) return null;
	if (g instanceof ConstrainableGraphics) {
	((ConstrainableGraphics) g).constrain(x, y, width, height);
	} else {
	g.translate(x,y);
	g.setClip(0, 0, width, height);
	}
	g.setFont(getFont_NoClientCode());
	return g;
	} else {
	return (peer != null) ? peer.getGraphics() : null;
	}
	}

	/**
	* Gets the font metrics for the specified font.
	* Warning: Since Font metrics are affected by the
	* {@link java.awt.font.FontRenderContext FontRenderContext} and
	* this method does not provide one, it can return only metrics for
	* the default render context which may not match that used when
	* rendering on the Component if {@link Graphics2D} functionality is being
	* used. Instead metrics can be obtained at rendering time by calling
	* {@link Graphics#getFontMetrics()} or text measurement APIs on the
	* {@link Font Font} class.
	* @param font the font for which font metrics is to be
	* obtained
	* @return the font metrics for <code>font</code>
	* @see #getFont
	* @see #getPeer
	* @see java.awt.peer.ComponentPeer#getFontMetrics(Font)
	* @see Toolkit#getFontMetrics(Font)
	* @since JDK1.0
	*/
	public FontMetrics getFontMetrics(Font font) {
	// This is an unsupported hack, but left in for a customer.
	// Do not remove.
	FontManager fm = FontManagerFactory.getInstance();
	if (fm instanceof SunFontManager
	&& ((SunFontManager) fm).usePlatformFontMetrics()) {

	if (peer != null &&
	!(peer instanceof LightweightPeer)) {
	return peer.getFontMetrics(font);
	}
	}
	return sun.font.FontDesignMetrics.getMetrics(font);
	}

	/**
	* Sets the cursor image to the specified cursor. This cursor
	* image is displayed when the <code>contains</code> method for
	* this component returns true for the current cursor location, and
	* this Component is visible, displayable, and enabled. Setting the
	* cursor of a <code>Container</code> causes that cursor to be displayed
	* within all of the container's subcomponents, except for those
	* that have a non-<code>null</code> cursor.
	* <p>
	* The method may have no visual effect if the Java platform
	* implementation and/or the native system do not support
	* changing the mouse cursor shape.
	* @param cursor One of the constants defined
	* by the <code>Cursor</code> class;
	* if this parameter is <code>null</code>
	* then this component will inherit
	* the cursor of its parent
	* @see #isEnabled
	* @see #isShowing
	* @see #getCursor
	* @see #contains
	* @see Toolkit#createCustomCursor
	* @see Cursor
	* @since JDK1.1
	*/
	public void setCursor(Cursor cursor) {
	this.cursor = cursor;
	updateCursorImmediately();
	}

	/**
	* Updates the cursor. May not be invoked from the native
	* message pump.
	*/
	final void updateCursorImmediately() {
	if (peer instanceof LightweightPeer) {
	Container nativeContainer = getNativeContainer();

	if (nativeContainer == null) return;

	ComponentPeer cPeer = nativeContainer.getPeer();

	if (cPeer != null) {
	cPeer.updateCursorImmediately();
	}
	} else if (peer != null) {
	peer.updateCursorImmediately();
	}
	}

	/**
	* Gets the cursor set in the component. If the component does
	* not have a cursor set, the cursor of its parent is returned.
	* If no cursor is set in the entire hierarchy,
	* <code>Cursor.DEFAULT_CURSOR</code> is returned.
	* @see #setCursor
	* @since JDK1.1
	*/
	public Cursor getCursor() {
	return getCursor_NoClientCode();
	}

	final Cursor getCursor_NoClientCode() {
	Cursor cursor = this.cursor;
	if (cursor != null) {
	return cursor;
	}
	Container parent = this.parent;
	if (parent != null) {
	return parent.getCursor_NoClientCode();
	} else {
	return Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR);
	}
	}

	/**
	* Returns whether the cursor has been explicitly set for this Component.
	* If this method returns <code>false</code>, this Component is inheriting
	* its cursor from an ancestor.
	*
	* @return <code>true</code> if the cursor has been explicitly set for this
	* Component; <code>false</code> otherwise.
	* @since 1.4
	*/
	public boolean isCursorSet() {
	return (cursor != null);
	}

	/**
	* Paints this component.
	* <p>
	* This method is called when the contents of the component should
	* be painted; such as when the component is first being shown or
	* is damaged and in need of repair. The clip rectangle in the
	* <code>Graphics</code> parameter is set to the area
	* which needs to be painted.
	* Subclasses of <code>Component</code> that override this
	* method need not call <code>super.paint(g)</code>.
	* <p>
	* For performance reasons, <code>Component</code>s with zero width
	* or height aren't considered to need painting when they are first shown,
	* and also aren't considered to need repair.
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	*
	* @param g the graphics context to use for painting
	* @see #update
	* @since JDK1.0
	*/
	public void paint(Graphics g) {
	}

	/**
	* Updates this component.
	* <p>
	* If this component is not a lightweight component, the
	* AWT calls the <code>update</code> method in response to
	* a call to <code>repaint</code>. You can assume that
	* the background is not cleared.
	* <p>
	* The <code>update</code> method of <code>Component</code>
	* calls this component's <code>paint</code> method to redraw
	* this component. This method is commonly overridden by subclasses
	* which need to do additional work in response to a call to
	* <code>repaint</code>.
	* Subclasses of Component that override this method should either
	* call <code>super.update(g)</code>, or call <code>paint(g)</code>
	* directly from their <code>update</code> method.
	* <p>
	* The origin of the graphics context, its
	* (<code>0</code>, <code>0</code>) coordinate point, is the
	* top-left corner of this component. The clipping region of the
	* graphics context is the bounding rectangle of this component.
	*
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	*
	* @param g the specified context to use for updating
	* @see #paint
	* @see #repaint()
	* @since JDK1.0
	*/
	public void update(Graphics g) {
	paint(g);
	}

	/**
	* Paints this component and all of its subcomponents.
	* <p>
	* The origin of the graphics context, its
	* (<code>0</code>, <code>0</code>) coordinate point, is the
	* top-left corner of this component. The clipping region of the
	* graphics context is the bounding rectangle of this component.
	*
	* @param g the graphics context to use for painting
	* @see #paint
	* @since JDK1.0
	*/
	public void paintAll(Graphics g) {
	if (isShowing()) {
	GraphicsCallback.PeerPaintCallback.getInstance().
	runOneComponent(this, new Rectangle(0, 0, width, height),
	g, g.getClip(),
	GraphicsCallback.LIGHTWEIGHTS \|
	GraphicsCallback.HEAVYWEIGHTS);
	}
	}

	/**
	* Simulates the peer callbacks into java.awt for painting of
	* lightweight Components.
	* @param g the graphics context to use for painting
	* @see #paintAll
	*/
	void lightweightPaint(Graphics g) {
	paint(g);
	}

	/**
	* Paints all the heavyweight subcomponents.
	*/
	void paintHeavyweightComponents(Graphics g) {
	}

	/**
	* Repaints this component.
	* <p>
	* If this component is a lightweight component, this method
	* causes a call to this component's <code>paint</code>
	* method as soon as possible. Otherwise, this method causes
	* a call to this component's <code>update</code> method as soon
	* as possible.
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.

	*
	* @see #update(Graphics)
	* @since JDK1.0
	*/
	public void repaint() {
	repaint(0, 0, 0, width, height);
	}

	/**
	* Repaints the component. If this component is a lightweight
	* component, this results in a call to <code>paint</code>
	* within <code>tm</code> milliseconds.
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	*
	* @param tm maximum time in milliseconds before update
	* @see #paint
	* @see #update(Graphics)
	* @since JDK1.0
	*/
	public void repaint(long tm) {
	repaint(tm, 0, 0, width, height);
	}

	/**
	* Repaints the specified rectangle of this component.
	* <p>
	* If this component is a lightweight component, this method
	* causes a call to this component's <code>paint</code> method
	* as soon as possible. Otherwise, this method causes a call to
	* this component's <code>update</code> method as soon as possible.
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	*
	* @param x the <i>x</i> coordinate
	* @param y the <i>y</i> coordinate
	* @param width the width
	* @param height the height
	* @see #update(Graphics)
	* @since JDK1.0
	*/
	public void repaint(int x, int y, int width, int height) {
	repaint(0, x, y, width, height);
	}

	/**
	* Repaints the specified rectangle of this component within
	* <code>tm</code> milliseconds.
	* <p>
	* If this component is a lightweight component, this method causes
	* a call to this component's <code>paint</code> method.
	* Otherwise, this method causes a call to this component's
	* <code>update</code> method.
	* <p>
	* <b>Note</b>: For more information on the paint mechanisms utilitized
	* by AWT and Swing, including information on how to write the most
	* efficient painting code, see
	* <a href="http://www.oracle.com/technetwork/java/painting-140037.html">Painting in AWT and Swing</a>.
	*
	* @param tm maximum time in milliseconds before update
	* @param x the <i>x</i> coordinate
	* @param y the <i>y</i> coordinate
	* @param width the width
	* @param height the height
	* @see #update(Graphics)
	* @since JDK1.0
	*/
	public void repaint(long tm, int x, int y, int width, int height) {
	if (this.peer instanceof LightweightPeer) {
	// Needs to be translated to parent coordinates since
	// a parent native container provides the actual repaint
	// services. Additionally, the request is restricted to
	// the bounds of the component.
	if (parent != null) {
	if (x < 0) {
	width += x;
	x = 0;
	}
	if (y < 0) {
	height += y;
	y = 0;
	}

	int pwidth = (width > this.width) ? this.width : width;
	int pheight = (height > this.height) ? this.height : height;

	if (pwidth <= 0 \|\| pheight <= 0) {
	return;
	}

	int px = this.x + x;
	int py = this.y + y;
	parent.repaint(tm, px, py, pwidth, pheight);
	}
	} else {
	if (isVisible() && (this.peer != null) &&
	(width > 0) && (height > 0)) {
	PaintEvent e = new PaintEvent(this, PaintEvent.UPDATE,
	new Rectangle(x, y, width, height));
	SunToolkit.postEvent(SunToolkit.targetToAppContext(this), e);
	}
	}
	}

	/**
	* Prints this component. Applications should override this method
	* for components that must do special processing before being
	* printed or should be printed differently than they are painted.
	* <p>
	* The default implementation of this method calls the
	* <code>paint</code> method.
	* <p>
	* The origin of the graphics context, its
	* (<code>0</code>, <code>0</code>) coordinate point, is the
	* top-left corner of this component. The clipping region of the
	* graphics context is the bounding rectangle of this component.
	* @param g the graphics context to use for printing
	* @see #paint(Graphics)
	* @since JDK1.0
	*/
	public void print(Graphics g) {
	paint(g);
	}

	/**
	* Prints this component and all of its subcomponents.
	* <p>
	* The origin of the graphics context, its
	* (<code>0</code>, <code>0</code>) coordinate point, is the
	* top-left corner of this component. The clipping region of the
	* graphics context is the bounding rectangle of this component.
	* @param g the graphics context to use for printing
	* @see #print(Graphics)
	* @since JDK1.0
	*/
	public void printAll(Graphics g) {
	if (isShowing()) {
	GraphicsCallback.PeerPrintCallback.getInstance().
	runOneComponent(this, new Rectangle(0, 0, width, height),
	g, g.getClip(),
	GraphicsCallback.LIGHTWEIGHTS \|
	GraphicsCallback.HEAVYWEIGHTS);
	}
	}

	/**
	* Simulates the peer callbacks into java.awt for printing of
	* lightweight Components.
	* @param g the graphics context to use for printing
	* @see #printAll
	*/
	void lightweightPrint(Graphics g) {
	print(g);
	}

	/**
	* Prints all the heavyweight subcomponents.
	*/
	void printHeavyweightComponents(Graphics g) {
	}

	private Insets getInsets_NoClientCode() {
	ComponentPeer peer = this.peer;
	if (peer instanceof ContainerPeer) {
	return (Insets)((ContainerPeer)peer).getInsets().clone();
	}
	return new Insets(0, 0, 0, 0);
	}

	/**
	* Repaints the component when the image has changed.
	* This <code>imageUpdate</code> method of an <code>ImageObserver</code>
	* is called when more information about an
	* image which had been previously requested using an asynchronous
	* routine such as the <code>drawImage</code> method of
	* <code>Graphics</code> becomes available.
	* See the definition of <code>imageUpdate</code> for
	* more information on this method and its arguments.
	* <p>
	* The <code>imageUpdate</code> method of <code>Component</code>
	* incrementally draws an image on the component as more of the bits
	* of the image are available.
	* <p>
	* If the system property <code>awt.image.incrementaldraw</code>
	* is missing or has the value <code>true</code>, the image is
	* incrementally drawn. If the system property has any other value,
	* then the image is not drawn until it has been completely loaded.
	* <p>
	* Also, if incremental drawing is in effect, the value of the
	* system property <code>awt.image.redrawrate</code> is interpreted
	* as an integer to give the maximum redraw rate, in milliseconds. If
	* the system property is missing or cannot be interpreted as an
	* integer, the redraw rate is once every 100ms.
	* <p>
	* The interpretation of the <code>x</code>, <code>y</code>,
	* <code>width</code>, and <code>height</code> arguments depends on
	* the value of the <code>infoflags</code> argument.
	*
	* @param img the image being observed
	* @param infoflags see <code>imageUpdate</code> for more information
	* @param x the <i>x</i> coordinate
	* @param y the <i>y</i> coordinate
	* @param w the width
	* @param h the height
	* @return <code>false</code> if the infoflags indicate that the
	* image is completely loaded; <code>true</code> otherwise.
	*
	* @see java.awt.image.ImageObserver
	* @see Graphics#drawImage(Image, int, int, Color, java.awt.image.ImageObserver)
	* @see Graphics#drawImage(Image, int, int, java.awt.image.ImageObserver)
	* @see Graphics#drawImage(Image, int, int, int, int, Color, java.awt.image.ImageObserver)
	* @see Graphics#drawImage(Image, int, int, int, int, java.awt.image.ImageObserver)
	* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
	* @since JDK1.0
	*/
	public boolean imageUpdate(Image img, int infoflags,
	int x, int y, int w, int h) {
	int rate = -1;
	if ((infoflags & (FRAMEBITS\|ALLBITS)) != 0) {
	rate = 0;
	} else if ((infoflags & SOMEBITS) != 0) {
	if (isInc) {
	rate = incRate;
	if (rate < 0) {
	rate = 0;
	}
	}
	}
	if (rate >= 0) {
	repaint(rate, 0, 0, width, height);
	}
	return (infoflags & (ALLBITS\|ABORT)) == 0;
	}

	/**
	* Creates an image from the specified image producer.
	* @param producer the image producer
	* @return the image produced
	* @since JDK1.0
	*/
	public Image createImage(ImageProducer producer) {
	ComponentPeer peer = this.peer;
	if ((peer != null) && ! (peer instanceof LightweightPeer)) {
	return peer.createImage(producer);
	}
	return getToolkit().createImage(producer);
	}

	/**
	* Creates an off-screen drawable image
	* to be used for double buffering.
	* @param width the specified width
	* @param height the specified height
	* @return an off-screen drawable image, which can be used for double
	* buffering. The return value may be <code>null</code> if the
	* component is not displayable. This will always happen if
	* <code>GraphicsEnvironment.isHeadless()</code> returns
	* <code>true</code>.
	* @see #isDisplayable
	* @see GraphicsEnvironment#isHeadless
	* @since JDK1.0
	*/
	public Image createImage(int width, int height) {
	ComponentPeer peer = this.peer;
	if (peer instanceof LightweightPeer) {
	if (parent != null) { return parent.createImage(width, height); }
	else { return null;}
	} else {
	return (peer != null) ? peer.createImage(width, height) : null;
	}
	}

	/**
	* Creates a volatile off-screen drawable image
	* to be used for double buffering.
	* @param width the specified width.
	* @param height the specified height.
	* @return an off-screen drawable image, which can be used for double
	* buffering. The return value may be <code>null</code> if the
	* component is not displayable. This will always happen if
	* <code>GraphicsEnvironment.isHeadless()</code> returns
	* <code>true</code>.
	* @see java.awt.image.VolatileImage
	* @see #isDisplayable
	* @see GraphicsEnvironment#isHeadless
	* @since 1.4
	*/
	public VolatileImage createVolatileImage(int width, int height) {
	ComponentPeer peer = this.peer;
	if (peer instanceof LightweightPeer) {
	if (parent != null) {
	return parent.createVolatileImage(width, height);
	}
	else { return null;}
	} else {
	return (peer != null) ?
	peer.createVolatileImage(width, height) : null;
	}
	}

	/**
	* Creates a volatile off-screen drawable image, with the given capabilities.
	* The contents of this image may be lost at any time due
	* to operating system issues, so the image must be managed
	* via the <code>VolatileImage</code> interface.
	* @param width the specified width.
	* @param height the specified height.
	* @param caps the image capabilities
	* @exception AWTException if an image with the specified capabilities cannot
	* be created
	* @return a VolatileImage object, which can be used
	* to manage surface contents loss and capabilities.
	* @see java.awt.image.VolatileImage
	* @since 1.4
	*/
	public VolatileImage createVolatileImage(int width, int height,
	ImageCapabilities caps) throws AWTException {
	// REMIND : check caps
	return createVolatileImage(width, height);
	}

	/**
	* Prepares an image for rendering on this component. The image
	* data is downloaded asynchronously in another thread and the
	* appropriate screen representation of the image is generated.
	* @param image the <code>Image</code> for which to
	* prepare a screen representation
	* @param observer the <code>ImageObserver</code> object
	* to be notified as the image is being prepared
	* @return <code>true</code> if the image has already been fully
	* prepared; <code>false</code> otherwise
	* @since JDK1.0
	*/
	public boolean prepareImage(Image image, ImageObserver observer) {
	return prepareImage(image, -1, -1, observer);
	}

	/**
	* Prepares an image for rendering on this component at the
	* specified width and height.
	* <p>
	* The image data is downloaded asynchronously in another thread,
	* and an appropriately scaled screen representation of the image is
	* generated.
	* @param image the instance of <code>Image</code>
	* for which to prepare a screen representation
	* @param width the width of the desired screen representation
	* @param height the height of the desired screen representation
	* @param observer the <code>ImageObserver</code> object
	* to be notified as the image is being prepared
	* @return <code>true</code> if the image has already been fully
	* prepared; <code>false</code> otherwise
	* @see java.awt.image.ImageObserver
	* @since JDK1.0
	*/
	public boolean prepareImage(Image image, int width, int height,
	ImageObserver observer) {
	ComponentPeer peer = this.peer;
	if (peer instanceof LightweightPeer) {
	return (parent != null)
	? parent.prepareImage(image, width, height, observer)
	: getToolkit().prepareImage(image, width, height, observer);
	} else {
	return (peer != null)
	? peer.prepareImage(image, width, height, observer)
	: getToolkit().prepareImage(image, width, height, observer);
	}
	}

	/**
	* Returns the status of the construction of a screen representation
	* of the specified image.
	* <p>
	* This method does not cause the image to begin loading. An
	* application must use the <code>prepareImage</code> method
	* to force the loading of an image.
	* <p>
	* Information on the flags returned by this method can be found
	* with the discussion of the <code>ImageObserver</code> interface.
	* @param image the <code>Image</code> object whose status
	* is being checked
	* @param observer the <code>ImageObserver</code>
	* object to be notified as the image is being prepared
	* @return the bitwise inclusive <b>OR</b> of
	* <code>ImageObserver</code> flags indicating what
	* information about the image is currently available
	* @see #prepareImage(Image, int, int, java.awt.image.ImageObserver)
	* @see Toolkit#checkImage(Image, int, int, java.awt.image.ImageObserver)
	* @see java.awt.image.ImageObserver
	* @since JDK1.0
	*/
	public int checkImage(Image image, ImageObserver observer) {
	return checkImage(image, -1, -1, observer);
	}

	/**
	* Returns the status of the construction of a screen representation
	* of the specified image.
	* <p>
	* This method does not cause the image to begin loading. An
	* application must use the <code>prepareImage</code> method
	* to force the loading of an image.
	* <p>
	* The <code>checkImage</code> method of <code>Component</code>
	* calls its peer's <code>checkImage</code> method to calculate
	* the flags. If this component does not yet have a peer, the
	* component's toolkit's <code>checkImage</code> method is called
	* instead.
	* <p>
	* Information on the flags returned by this method can be found
	* with the discussion of the <code>ImageObserver</code> interface.
	* @param image the <code>Image</code> object whose status
	* is being checked
	* @param width the width of the scaled version
	* whose status is to be checked
	* @param height the height of the scaled version
	* whose status is to be checked
	* @param observer the <code>ImageObserver</code> object
	* to be notified as the image is being prepared
	* @return the bitwise inclusive <b>OR</b> of
	* <code>ImageObserver</code> flags indicating what
	* information about the image is currently available
	* @see #prepareImage(Image, int, int, java.awt.image.ImageObserver)
	* @see Toolkit#checkImage(Image, int, int, java.awt.image.ImageObserver)
	* @see java.awt.image.ImageObserver
	* @since JDK1.0
	*/
	public int checkImage(Image image, int width, int height,
	ImageObserver observer) {
	ComponentPeer peer = this.peer;
	if (peer instanceof LightweightPeer) {
	return (parent != null)
	? parent.checkImage(image, width, height, observer)
	: getToolkit().checkImage(image, width, height, observer);
	} else {
	return (peer != null)
	? peer.checkImage(image, width, height, observer)
	: getToolkit().checkImage(image, width, height, observer);
	}
	}

	/**
	* Creates a new strategy for multi-buffering on this component.
	* Multi-buffering is useful for rendering performance. This method
	* attempts to create the best strategy available with the number of
	* buffers supplied. It will always create a <code>BufferStrategy</code>
	* with that number of buffers.
	* A page-flipping strategy is attempted first, then a blitting strategy
	* using accelerated buffers. Finally, an unaccelerated blitting
	* strategy is used.
	* <p>
	* Each time this method is called,
	* the existing buffer strategy for this component is discarded.
	* @param numBuffers number of buffers to create, including the front buffer
	* @exception IllegalArgumentException if numBuffers is less than 1.
	* @exception IllegalStateException if the component is not displayable
	* @see #isDisplayable
	* @see Window#getBufferStrategy()
	* @see Canvas#getBufferStrategy()
	* @since 1.4
	*/
	void createBufferStrategy(int numBuffers) {
	BufferCapabilities bufferCaps;
	if (numBuffers > 1) {
	// Try to create a page-flipping strategy
	bufferCaps = new BufferCapabilities(new ImageCapabilities(true),
	new ImageCapabilities(true),
	BufferCapabilities.FlipContents.UNDEFINED);
	try {
	createBufferStrategy(numBuffers, bufferCaps);
	return; // Success
	} catch (AWTException e) {
	// Failed
	}
	}
	// Try a blitting (but still accelerated) strategy
	bufferCaps = new BufferCapabilities(new ImageCapabilities(true),
	new ImageCapabilities(true),
	null);
	try {
	createBufferStrategy(numBuffers, bufferCaps);
	return; // Success
	} catch (AWTException e) {
	// Failed
	}
	// Try an unaccelerated blitting strategy
	bufferCaps = new BufferCapabilities(new ImageCapabilities(false),
	new ImageCapabilities(false),
	null);
	try {
	createBufferStrategy(numBuffers, bufferCaps);
	return; // Success
	} catch (AWTException e) {
	// Code should never reach here (an unaccelerated blitting
	// strategy should always work)
	throw new InternalError("Could not create a buffer strategy", e);
	}
	}

	/**
	* Creates a new strategy for multi-buffering on this component with the
	* required buffer capabilities. This is useful, for example, if only
	* accelerated memory or page flipping is desired (as specified by the
	* buffer capabilities).
	* <p>
	* Each time this method
	* is called, <code>dispose</code> will be invoked on the existing
	* <code>BufferStrategy</code>.
	* @param numBuffers number of buffers to create
	* @param caps the required capabilities for creating the buffer strategy;
	* cannot be <code>null</code>
	* @exception AWTException if the capabilities supplied could not be
	* supported or met; this may happen, for example, if there is not enough
	* accelerated memory currently available, or if page flipping is specified
	* but not possible.
	* @exception IllegalArgumentException if numBuffers is less than 1, or if
	* caps is <code>null</code>
	* @see Window#getBufferStrategy()
	* @see Canvas#getBufferStrategy()
	* @since 1.4
	*/
	void createBufferStrategy(int numBuffers,
	BufferCapabilities caps) throws AWTException {
	// Check arguments
	if (numBuffers < 1) {
	throw new IllegalArgumentException(
	"Number of buffers must be at least 1");
	}
	if (caps == null) {
	throw new IllegalArgumentException("No capabilities specified");
	}
	// Destroy old buffers
	if (bufferStrategy != null) {
	bufferStrategy.dispose();
	}
	if (numBuffers == 1) {
	bufferStrategy = new SingleBufferStrategy(caps);
	} else {
	SunGraphicsEnvironment sge = (SunGraphicsEnvironment)
	GraphicsEnvironment.getLocalGraphicsEnvironment();
	if (!caps.isPageFlipping() && sge.isFlipStrategyPreferred(peer)) {
	caps = new ProxyCapabilities(caps);
	}
	// assert numBuffers > 1;
	if (caps.isPageFlipping()) {
	bufferStrategy = new FlipSubRegionBufferStrategy(numBuffers, caps);
	} else {
	bufferStrategy = new BltSubRegionBufferStrategy(numBuffers, caps);
	}
	}
	}

	/**
	* This is a proxy capabilities class used when a FlipBufferStrategy
	* is created instead of the requested Blit strategy.
	*
	* @see sun.java2d.SunGraphicsEnvironment#isFlipStrategyPreferred(ComponentPeer)
	*/
	private class ProxyCapabilities extends ExtendedBufferCapabilities {
	private BufferCapabilities orig;
	private ProxyCapabilities(BufferCapabilities orig) {
	super(orig.getFrontBufferCapabilities(),
	orig.getBackBufferCapabilities(),
	orig.getFlipContents() ==
	BufferCapabilities.FlipContents.BACKGROUND ?
	BufferCapabilities.FlipContents.BACKGROUND :
	BufferCapabilities.FlipContents.COPIED);
	this.orig = orig;
	}
	}

	/**
	* @return the buffer strategy used by this component
	* @see Window#createBufferStrategy
	* @see Canvas#createBufferStrategy
	* @since 1.4
	*/
	BufferStrategy getBufferStrategy() {
	return bufferStrategy;
	}

	/**
	* @return the back buffer currently used by this component's
	* BufferStrategy. If there is no BufferStrategy or no
	* back buffer, this method returns null.
	*/
	Image getBackBuffer() {
	if (bufferStrategy != null) {
	if (bufferStrategy instanceof BltBufferStrategy) {
	BltBufferStrategy bltBS = (BltBufferStrategy)bufferStrategy;
	return bltBS.getBackBuffer();
	} else if (bufferStrategy instanceof FlipBufferStrategy) {
	FlipBufferStrategy flipBS = (FlipBufferStrategy)bufferStrategy;
	return flipBS.getBackBuffer();
	}
	}
	return null;
	}

	/**
	* Inner class for flipping buffers on a component. That component must
	* be a <code>Canvas</code> or <code>Window</code>.
	* @see Canvas
	* @see Window
	* @see java.awt.image.BufferStrategy
	* @author Michael Martak
	* @since 1.4
	*/
	protected class FlipBufferStrategy extends BufferStrategy {
	/**
	* The number of buffers
	*/
	protected int numBuffers; // = 0
	/**
	* The buffering capabilities
	*/
	protected BufferCapabilities caps; // = null
	/**
	* The drawing buffer
	*/
	protected Image drawBuffer; // = null
	/**
	* The drawing buffer as a volatile image
	*/
	protected VolatileImage drawVBuffer; // = null
	/**
	* Whether or not the drawing buffer has been recently restored from
	* a lost state.
	*/
	protected boolean validatedContents; // = false
	/**
	* Size of the back buffers. (Note: these fields were added in 6.0
	* but kept package-private to avoid exposing them in the spec.
	* None of these fields/methods really should have been marked
	* protected when they were introduced in 1.4, but now we just have
	* to live with that decision.)
	*/
	int width;
	int height;

	/**
	* Creates a new flipping buffer strategy for this component.
	* The component must be a <code>Canvas</code> or <code>Window</code>.
	* @see Canvas
	* @see Window
	* @param numBuffers the number of buffers
	* @param caps the capabilities of the buffers
	* @exception AWTException if the capabilities supplied could not be
	* supported or met
	* @exception ClassCastException if the component is not a canvas or
	* window.
	* @exception IllegalStateException if the component has no peer
	* @exception IllegalArgumentException if {@code numBuffers} is less than two,
	* or if {@code BufferCapabilities.isPageFlipping} is not
	* {@code true}.
	* @see #createBuffers(int, BufferCapabilities)
	*/
	protected FlipBufferStrategy(int numBuffers, BufferCapabilities caps)
	throws AWTException
	{
	if (!(Component.this instanceof Window) &&
	!(Component.this instanceof Canvas))
	{
	throw new ClassCastException(
	"Component must be a Canvas or Window");
	}
	this.numBuffers = numBuffers;
	this.caps = caps;
	createBuffers(numBuffers, caps);
	}

	/**
	* Creates one or more complex, flipping buffers with the given
	* capabilities.
	* @param numBuffers number of buffers to create; must be greater than
	* one
	* @param caps the capabilities of the buffers.
	* <code>BufferCapabilities.isPageFlipping</code> must be
	* <code>true</code>.
	* @exception AWTException if the capabilities supplied could not be
	* supported or met
	* @exception IllegalStateException if the component has no peer
	* @exception IllegalArgumentException if numBuffers is less than two,
	* or if <code>BufferCapabilities.isPageFlipping</code> is not
	* <code>true</code>.
	* @see java.awt.BufferCapabilities#isPageFlipping()
	*/
	protected void createBuffers(int numBuffers, BufferCapabilities caps)
	throws AWTException
	{
	if (numBuffers < 2) {
	throw new IllegalArgumentException(
	"Number of buffers cannot be less than two");
	} else if (peer == null) {
	throw new IllegalStateException(
	"Component must have a valid peer");
	} else if (caps == null \|\| !caps.isPageFlipping()) {
	throw new IllegalArgumentException(
	"Page flipping capabilities must be specified");
	}

	// save the current bounds
	width = getWidth();
	height = getHeight();

	if (drawBuffer != null) {
	// dispose the existing backbuffers
	drawBuffer = null;
	drawVBuffer = null;
	destroyBuffers();
	// ... then recreate the backbuffers
	}

	if (caps instanceof ExtendedBufferCapabilities) {
	ExtendedBufferCapabilities ebc =
	(ExtendedBufferCapabilities)caps;
	if (ebc.getVSync() == VSYNC_ON) {
	// if this buffer strategy is not allowed to be v-synced,
	// change the caps that we pass to the peer but keep on
	// trying to create v-synced buffers;
	// do not throw IAE here in case it is disallowed, see
	// ExtendedBufferCapabilities for more info
	if (!VSyncedBSManager.vsyncAllowed(this)) {
	caps = ebc.derive(VSYNC_DEFAULT);
	}
	}
	}

	peer.createBuffers(numBuffers, caps);
	updateInternalBuffers();
	}

	/**
	* Updates internal buffers (both volatile and non-volatile)
	* by requesting the back-buffer from the peer.
	*/
	private void updateInternalBuffers() {
	// get the images associated with the draw buffer
	drawBuffer = getBackBuffer();
	if (drawBuffer instanceof VolatileImage) {
	drawVBuffer = (VolatileImage)drawBuffer;
	} else {
	drawVBuffer = null;
	}
	}

	/**
	* @return direct access to the back buffer, as an image.
	* @exception IllegalStateException if the buffers have not yet
	* been created
	*/
	protected Image getBackBuffer() {
	if (peer != null) {
	return peer.getBackBuffer();
	} else {
	throw new IllegalStateException(
	"Component must have a valid peer");
	}
	}

	/**
	* Flipping moves the contents of the back buffer to the front buffer,
	* either by copying or by moving the video pointer.
	* @param flipAction an integer value describing the flipping action
	* for the contents of the back buffer. This should be one of the
	* values of the <code>BufferCapabilities.FlipContents</code>
	* property.
	* @exception IllegalStateException if the buffers have not yet
	* been created
	* @see java.awt.BufferCapabilities#getFlipContents()
	*/
	protected void flip(BufferCapabilities.FlipContents flipAction) {
	if (peer != null) {
	Image backBuffer = getBackBuffer();
	if (backBuffer != null) {
	peer.flip(0, 0,
	backBuffer.getWidth(null),
	backBuffer.getHeight(null), flipAction);
	}
	} else {
	throw new IllegalStateException(
	"Component must have a valid peer");
	}
	}

	void flipSubRegion(int x1, int y1, int x2, int y2,
	BufferCapabilities.FlipContents flipAction)
	{
	if (peer != null) {
	peer.flip(x1, y1, x2, y2, flipAction);
	} else {
	throw new IllegalStateException(
	"Component must have a valid peer");
	}
	}

	/**
	* Destroys the buffers created through this object
	*/
	protected void destroyBuffers() {
	VSyncedBSManager.releaseVsync(this);
	if (peer != null) {
	peer.destroyBuffers();
	} else {
	throw new IllegalStateException(
	"Component must have a valid peer");
	}
	}

	/**
	* @return the buffering capabilities of this strategy
	*/
	public BufferCapabilities getCapabilities() {
	if (caps instanceof ProxyCapabilities) {
	return ((ProxyCapabilities)caps).orig;
	} else {
	return caps;
	}
	}

	/**
	* @return the graphics on the drawing buffer. This method may not
	* be synchronized for performance reasons; use of this method by multiple
	* threads should be handled at the application level. Disposal of the
	* graphics object must be handled by the application.
	*/
	public Graphics getDrawGraphics() {
	revalidate();
	return drawBuffer.getGraphics();
	}

	/**
	* Restore the drawing buffer if it has been lost
	*/
	protected void revalidate() {
	revalidate(true);
	}

	void revalidate(boolean checkSize) {
	validatedContents = false;

	if (checkSize && (getWidth() != width \|\| getHeight() != height)) {
	// component has been resized; recreate the backbuffers
	try {
	createBuffers(numBuffers, caps);
	} catch (AWTException e) {
	// shouldn't be possible
	}
	validatedContents = true;
	}

	// get the buffers from the peer every time since they
	// might have been replaced in response to a display change event
	updateInternalBuffers();

	// now validate the backbuffer
	if (drawVBuffer != null) {
	GraphicsConfiguration gc =
	getGraphicsConfiguration_NoClientCode();
	int returnCode = drawVBuffer.validate(gc);
	if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
	try {
	createBuffers(numBuffers, caps);
	} catch (AWTException e) {
	// shouldn't be possible
	}
	if (drawVBuffer != null) {
	// backbuffers were recreated, so validate again
	drawVBuffer.validate(gc);
	}
	validatedContents = true;
	} else if (returnCode == VolatileImage.IMAGE_RESTORED) {
	validatedContents = true;
	}
	}
	}

	/**
	* @return whether the drawing buffer was lost since the last call to
	* <code>getDrawGraphics</code>
	*/
	public boolean contentsLost() {
	if (drawVBuffer == null) {
	return false;
	}
	return drawVBuffer.contentsLost();
	}

	/**
	* @return whether the drawing buffer was recently restored from a lost
	* state and reinitialized to the default background color (white)
	*/
	public boolean contentsRestored() {
	return validatedContents;
	}

	/**
	* Makes the next available buffer visible by either blitting or
	* flipping.
	*/
	public void show() {
	flip(caps.getFlipContents());
	}

	/**
	* Makes specified region of the the next available buffer visible
	* by either blitting or flipping.
	*/
	void showSubRegion(int x1, int y1, int x2, int y2) {
	flipSubRegion(x1, y1, x2, y2, caps.getFlipContents());
	}

	/**
	* {@inheritDoc}
	* @since 1.6
	*/
	public void dispose() {
	if (Component.this.bufferStrategy == this) {
	Component.this.bufferStrategy = null;
	if (peer != null) {
	destroyBuffers();
	}
	}
	}

	} // Inner class FlipBufferStrategy

	/**
	* Inner class for blitting offscreen surfaces to a component.
	*
	* @author Michael Martak
	* @since 1.4
	*/
	protected class BltBufferStrategy extends BufferStrategy {

	/**
	* The buffering capabilities
	*/
	protected BufferCapabilities caps; // = null
	/**
	* The back buffers
	*/
	protected VolatileImage[] backBuffers; // = null
	/**
	* Whether or not the drawing buffer has been recently restored from
	* a lost state.
	*/
	protected boolean validatedContents; // = false
	/**
	* Size of the back buffers
	*/
	protected int width;
	protected int height;

	/**
	* Insets for the hosting Component. The size of the back buffer
	* is constrained by these.
	*/
	private Insets insets;

	/**
	* Creates a new blt buffer strategy around a component
	* @param numBuffers number of buffers to create, including the
	* front buffer
	* @param caps the capabilities of the buffers
	*/
	protected BltBufferStrategy(int numBuffers, BufferCapabilities caps) {
	this.caps = caps;
	createBackBuffers(numBuffers - 1);
	}

	/**
	* {@inheritDoc}
	* @since 1.6
	*/
	public void dispose() {
	if (backBuffers != null) {
	for (int counter = backBuffers.length - 1; counter >= 0;
	counter--) {
	if (backBuffers[counter] != null) {
	backBuffers[counter].flush();
	backBuffers[counter] = null;
	}
	}
	}
	if (Component.this.bufferStrategy == this) {
	Component.this.bufferStrategy = null;
	}
	}

	/**
	* Creates the back buffers
	*/
	protected void createBackBuffers(int numBuffers) {
	if (numBuffers == 0) {
	backBuffers = null;
	} else {
	// save the current bounds
	width = getWidth();
	height = getHeight();
	insets = getInsets_NoClientCode();
	int iWidth = width - insets.left - insets.right;
	int iHeight = height - insets.top - insets.bottom;

	// It is possible for the component's width and/or height
	// to be 0 here. Force the size of the backbuffers to
	// be > 0 so that creating the image won't fail.
	iWidth = Math.max(1, iWidth);
	iHeight = Math.max(1, iHeight);
	if (backBuffers == null) {
	backBuffers = new VolatileImage[numBuffers];
	} else {
	// flush any existing backbuffers
	for (int i = 0; i < numBuffers; i++) {
	if (backBuffers[i] != null) {
	backBuffers[i].flush();
	backBuffers[i] = null;
	}
	}
	}

	// create the backbuffers
	for (int i = 0; i < numBuffers; i++) {
	backBuffers[i] = createVolatileImage(iWidth, iHeight);
	}
	}
	}

	/**
	* @return the buffering capabilities of this strategy
	*/
	public BufferCapabilities getCapabilities() {
	return caps;
	}

	/**
	* @return the draw graphics
	*/
	public Graphics getDrawGraphics() {
	revalidate();
	Image backBuffer = getBackBuffer();
	if (backBuffer == null) {
	return getGraphics();
	}
	SunGraphics2D g = (SunGraphics2D)backBuffer.getGraphics();
	g.constrain(-insets.left, -insets.top,
	backBuffer.getWidth(null) + insets.left,
	backBuffer.getHeight(null) + insets.top);
	return g;
	}

	/**
	* @return direct access to the back buffer, as an image.
	* If there is no back buffer, returns null.
	*/
	Image getBackBuffer() {
	if (backBuffers != null) {
	return backBuffers[backBuffers.length - 1];
	} else {
	return null;
	}
	}

	/**
	* Makes the next available buffer visible.
	*/
	public void show() {
	showSubRegion(insets.left, insets.top,
	width - insets.right,
	height - insets.bottom);
	}

	/**
	* Package-private method to present a specific rectangular area
	* of this buffer. This class currently shows only the entire
	* buffer, by calling showSubRegion() with the full dimensions of
	* the buffer. Subclasses (e.g., BltSubRegionBufferStrategy
	* and FlipSubRegionBufferStrategy) may have region-specific show
	* methods that call this method with actual sub regions of the
	* buffer.
	*/
	void showSubRegion(int x1, int y1, int x2, int y2) {
	if (backBuffers == null) {
	return;
	}
	// Adjust location to be relative to client area.
	x1 -= insets.left;
	x2 -= insets.left;
	y1 -= insets.top;
	y2 -= insets.top;
	Graphics g = getGraphics_NoClientCode();
	if (g == null) {
	// Not showing, bail
	return;
	}
	try {
	// First image copy is in terms of Frame's coordinates, need
	// to translate to client area.
	g.translate(insets.left, insets.top);
	for (int i = 0; i < backBuffers.length; i++) {
	g.drawImage(backBuffers[i],
	x1, y1, x2, y2,
	x1, y1, x2, y2,
	null);
	g.dispose();
	g = null;
	g = backBuffers[i].getGraphics();
	}
	} finally {
	if (g != null) {
	g.dispose();
	}
	}
	}

	/**
	* Restore the drawing buffer if it has been lost
	*/
	protected void revalidate() {
	revalidate(true);
	}

	void revalidate(boolean checkSize) {
	validatedContents = false;

	if (backBuffers == null) {
	return;
	}

	if (checkSize) {
	Insets insets = getInsets_NoClientCode();
	if (getWidth() != width \|\| getHeight() != height \|\|
	!insets.equals(this.insets)) {
	// component has been resized; recreate the backbuffers
	createBackBuffers(backBuffers.length);
	validatedContents = true;
	}
	}

	// now validate the backbuffer
	GraphicsConfiguration gc = getGraphicsConfiguration_NoClientCode();
	int returnCode =
	backBuffers[backBuffers.length - 1].validate(gc);
	if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
	if (checkSize) {
	createBackBuffers(backBuffers.length);
	// backbuffers were recreated, so validate again
	backBuffers[backBuffers.length - 1].validate(gc);
	}
	// else case means we're called from Swing on the toolkit
	// thread, don't recreate buffers as that'll deadlock
	// (creating VolatileImages invokes getting GraphicsConfig
	// which grabs treelock).
	validatedContents = true;
	} else if (returnCode == VolatileImage.IMAGE_RESTORED) {
	validatedContents = true;
	}
	}

	/**
	* @return whether the drawing buffer was lost since the last call to
	* <code>getDrawGraphics</code>
	*/
	public boolean contentsLost() {
	if (backBuffers == null) {
	return false;
	} else {
	return backBuffers[backBuffers.length - 1].contentsLost();
	}
	}

	/**
	* @return whether the drawing buffer was recently restored from a lost
	* state and reinitialized to the default background color (white)
	*/
	public boolean contentsRestored() {
	return validatedContents;
	}
	} // Inner class BltBufferStrategy

	/**
	* Private class to perform sub-region flipping.
	*/
	private class FlipSubRegionBufferStrategy extends FlipBufferStrategy
	implements SubRegionShowable
	{

	protected FlipSubRegionBufferStrategy(int numBuffers,
	BufferCapabilities caps)
	throws AWTException
	{
	super(numBuffers, caps);
	}

	public void show(int x1, int y1, int x2, int y2) {
	showSubRegion(x1, y1, x2, y2);
	}

	// This is invoked by Swing on the toolkit thread.
	public boolean showIfNotLost(int x1, int y1, int x2, int y2) {
	if (!contentsLost()) {
	showSubRegion(x1, y1, x2, y2);
	return !contentsLost();
	}
	return false;
	}
	}

	/**
	* Private class to perform sub-region blitting. Swing will use
	* this subclass via the SubRegionShowable interface in order to
	* copy only the area changed during a repaint.
	* See javax.swing.BufferStrategyPaintManager.
	*/
	private class BltSubRegionBufferStrategy extends BltBufferStrategy
	implements SubRegionShowable
	{

	protected BltSubRegionBufferStrategy(int numBuffers,
	BufferCapabilities caps)
	{
	super(numBuffers, caps);
	}

	public void show(int x1, int y1, int x2, int y2) {
	showSubRegion(x1, y1, x2, y2);
	}

	// This method is called by Swing on the toolkit thread.
	public boolean showIfNotLost(int x1, int y1, int x2, int y2) {
	if (!contentsLost()) {
	showSubRegion(x1, y1, x2, y2);
	return !contentsLost();
	}
	return false;
	}
	}

	/**
	* Inner class for flipping buffers on a component. That component must
	* be a <code>Canvas</code> or <code>Window</code>.
	* @see Canvas
	* @see Window
	* @see java.awt.image.BufferStrategy
	* @author Michael Martak
	* @since 1.4
	*/
	private class SingleBufferStrategy extends BufferStrategy {

	private BufferCapabilities caps;

	public SingleBufferStrategy(BufferCapabilities caps) {
	this.caps = caps;
	}
	public BufferCapabilities getCapabilities() {
	return caps;
	}
	public Graphics getDrawGraphics() {
	return getGraphics();
	}
	public boolean contentsLost() {
	return false;
	}
	public boolean contentsRestored() {
	return false;
	}
	public void show() {
	// Do nothing
	}
	} // Inner class SingleBufferStrategy

	/**
	* Sets whether or not paint messages received from the operating system
	* should be ignored. This does not affect paint events generated in
	* software by the AWT, unless they are an immediate response to an
	* OS-level paint message.
	* <p>
	* This is useful, for example, if running under full-screen mode and
	* better performance is desired, or if page-flipping is used as the
	* buffer strategy.
	*
	* @since 1.4
	* @see #getIgnoreRepaint
	* @see Canvas#createBufferStrategy
	* @see Window#createBufferStrategy
	* @see java.awt.image.BufferStrategy
	* @see GraphicsDevice#setFullScreenWindow
	*/
	public void setIgnoreRepaint(boolean ignoreRepaint) {
	this.ignoreRepaint = ignoreRepaint;
	}

	/**
	* @return whether or not paint messages received from the operating system
	* should be ignored.
	*
	* @since 1.4
	* @see #setIgnoreRepaint
	*/
	public boolean getIgnoreRepaint() {
	return ignoreRepaint;
	}

	/**
	* Checks whether this component "contains" the specified point,
	* where <code>x</code> and <code>y</code> are defined to be
	* relative to the coordinate system of this component.
	* @param x the <i>x</i> coordinate of the point
	* @param y the <i>y</i> coordinate of the point
	* @see #getComponentAt(int, int)
	* @since JDK1.1
	*/
	public boolean contains(int x, int y) {
	return inside(x, y);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by contains(int, int).
	*/
	@Deprecated
	public boolean inside(int x, int y) {
	return (x >= 0) && (x < width) && (y >= 0) && (y < height);
	}

	/**
	* Checks whether this component "contains" the specified point,
	* where the point's <i>x</i> and <i>y</i> coordinates are defined
	* to be relative to the coordinate system of this component.
	* @param p the point
	* @throws NullPointerException if {@code p} is {@code null}
	* @see #getComponentAt(Point)
	* @since JDK1.1
	*/
	public boolean contains(Point p) {
	return contains(p.x, p.y);
	}

	/**
	* Determines if this component or one of its immediate
	* subcomponents contains the (<i>x</i>, <i>y</i>) location,
	* and if so, returns the containing component. This method only
	* looks one level deep. If the point (<i>x</i>, <i>y</i>) is
	* inside a subcomponent that itself has subcomponents, it does not
	* go looking down the subcomponent tree.
	* <p>
	* The <code>locate</code> method of <code>Component</code> simply
	* returns the component itself if the (<i>x</i>, <i>y</i>)
	* coordinate location is inside its bounding box, and <code>null</code>
	* otherwise.
	* @param x the <i>x</i> coordinate
	* @param y the <i>y</i> coordinate
	* @return the component or subcomponent that contains the
	* (<i>x</i>, <i>y</i>) location;
	* <code>null</code> if the location
	* is outside this component
	* @see #contains(int, int)
	* @since JDK1.0
	*/
	public Component getComponentAt(int x, int y) {
	return locate(x, y);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by getComponentAt(int, int).
	*/
	@Deprecated
	public Component locate(int x, int y) {
	return contains(x, y) ? this : null;
	}

	/**
	* Returns the component or subcomponent that contains the
	* specified point.
	* @param p the point
	* @see java.awt.Component#contains
	* @since JDK1.1
	*/
	public Component getComponentAt(Point p) {
	return getComponentAt(p.x, p.y);
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>dispatchEvent(AWTEvent e)</code>.
	*/
	@Deprecated
	public void deliverEvent(Event e) {
	postEvent(e);
	}

	/**
	* Dispatches an event to this component or one of its sub components.
	* Calls <code>processEvent</code> before returning for 1.1-style
	* events which have been enabled for the <code>Component</code>.
	* @param e the event
	*/
	public final void dispatchEvent(AWTEvent e) {
	dispatchEventImpl(e);
	}

	@SuppressWarnings("deprecation")
	void dispatchEventImpl(AWTEvent e) {
	int id = e.getID();

	// Check that this component belongs to this app-context
	AppContext compContext = appContext;
	if (compContext != null && !compContext.equals(AppContext.getAppContext())) {
	if (eventLog.isLoggable(PlatformLogger.Level.FINE)) {
	eventLog.fine("Event " + e + " is being dispatched on the wrong AppContext");
	}
	}

	if (eventLog.isLoggable(PlatformLogger.Level.FINEST)) {
	eventLog.finest("{0}", e);
	}

	/*
	* 0. Set timestamp and modifiers of current event.
	*/
	if (!(e instanceof KeyEvent)) {
	// Timestamp of a key event is set later in DKFM.preDispatchKeyEvent(KeyEvent).
	EventQueue.setCurrentEventAndMostRecentTime(e);
	}

	/*
	* 1. Pre-dispatchers. Do any necessary retargeting/reordering here
	* before we notify AWTEventListeners.
	*/

	if (e instanceof SunDropTargetEvent) {
	((SunDropTargetEvent)e).dispatch();
	return;
	}

	if (!e.focusManagerIsDispatching) {
	// Invoke the private focus retargeting method which provides
	// lightweight Component support
	if (e.isPosted) {
	e = KeyboardFocusManager.retargetFocusEvent(e);
	e.isPosted = true;
	}

	// Now, with the event properly targeted to a lightweight
	// descendant if necessary, invoke the public focus retargeting
	// and dispatching function
	if (KeyboardFocusManager.getCurrentKeyboardFocusManager().
	dispatchEvent(e))
	{
	return;
	}
	}
	if ((e instanceof FocusEvent) && focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("" + e);
	}
	// MouseWheel may need to be retargeted here so that
	// AWTEventListener sees the event go to the correct
	// Component. If the MouseWheelEvent needs to go to an ancestor,
	// the event is dispatched to the ancestor, and dispatching here
	// stops.
	if (id == MouseEvent.MOUSE_WHEEL &&
	(!eventTypeEnabled(id)) &&
	(peer != null && !peer.handlesWheelScrolling()) &&
	(dispatchMouseWheelToAncestor((MouseWheelEvent)e)))
	{
	return;
	}

	/*
	* 2. Allow the Toolkit to pass this to AWTEventListeners.
	*/
	Toolkit toolkit = Toolkit.getDefaultToolkit();
	toolkit.notifyAWTEventListeners(e);


	/*
	* 3. If no one has consumed a key event, allow the
	* KeyboardFocusManager to process it.
	*/
	if (!e.isConsumed()) {
	if (e instanceof java.awt.event.KeyEvent) {
	KeyboardFocusManager.getCurrentKeyboardFocusManager().
	processKeyEvent(this, (KeyEvent)e);
	if (e.isConsumed()) {
	return;
	}
	}
	}

	/*
	* 4. Allow input methods to process the event
	*/
	if (areInputMethodsEnabled()) {
	// We need to pass on InputMethodEvents since some host
	// input method adapters send them through the Java
	// event queue instead of directly to the component,
	// and the input context also handles the Java composition window
	if(((e instanceof InputMethodEvent) && !(this instanceof CompositionArea))
	\|\|
	// Otherwise, we only pass on input and focus events, because
	// a) input methods shouldn't know about semantic or component-level events
	// b) passing on the events takes time
	// c) isConsumed() is always true for semantic events.
	(e instanceof InputEvent) \|\| (e instanceof FocusEvent)) {
	InputContext inputContext = getInputContext();


	if (inputContext != null) {
	inputContext.dispatchEvent(e);
	if (e.isConsumed()) {
	if ((e instanceof FocusEvent) && focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("3579: Skipping " + e);
	}
	return;
	}
	}
	}
	} else {
	// When non-clients get focus, we need to explicitly disable the native
	// input method. The native input method is actually not disabled when
	// the active/passive/peered clients loose focus.
	if (id == FocusEvent.FOCUS_GAINED) {
	InputContext inputContext = getInputContext();
	if (inputContext != null && inputContext instanceof sun.awt.im.InputContext) {
	((sun.awt.im.InputContext)inputContext).disableNativeIM();
	}
	}
	}


	/*
	* 5. Pre-process any special events before delivery
	*/
	switch(id) {
	// Handling of the PAINT and UPDATE events is now done in the
	// peer's handleEvent() method so the background can be cleared
	// selectively for non-native components on Windows only.
	// - Fred.Ecks@Eng.sun.com, 5-8-98

	case KeyEvent.KEY_PRESSED:
	case KeyEvent.KEY_RELEASED:
	Container p = (Container)((this instanceof Container) ? this : parent);
	if (p != null) {
	p.preProcessKeyEvent((KeyEvent)e);
	if (e.isConsumed()) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Pre-process consumed event");
	}
	return;
	}
	}
	break;

	case WindowEvent.WINDOW_CLOSING:
	if (toolkit instanceof WindowClosingListener) {
	windowClosingException = ((WindowClosingListener)
	toolkit).windowClosingNotify((WindowEvent)e);
	if (checkWindowClosingException()) {
	return;
	}
	}
	break;

	default:
	break;
	}

	/*
	* 6. Deliver event for normal processing
	*/
	if (newEventsOnly) {
	// Filtering needs to really be moved to happen at a lower
	// level in order to get maximum performance gain; it is
	// here temporarily to ensure the API spec is honored.
	//
	if (eventEnabled(e)) {
	processEvent(e);
	}
	} else if (id == MouseEvent.MOUSE_WHEEL) {
	// newEventsOnly will be false for a listenerless ScrollPane, but
	// MouseWheelEvents still need to be dispatched to it so scrolling
	// can be done.
	autoProcessMouseWheel((MouseWheelEvent)e);
	} else if (!(e instanceof MouseEvent && !postsOldMouseEvents())) {
	//
	// backward compatibility
	//
	Event olde = e.convertToOld();
	if (olde != null) {
	int key = olde.key;
	int modifiers = olde.modifiers;

	postEvent(olde);
	if (olde.isConsumed()) {
	e.consume();
	}
	// if target changed key or modifier values, copy them
	// back to original event
	//
	switch(olde.id) {
	case Event.KEY_PRESS:
	case Event.KEY_RELEASE:
	case Event.KEY_ACTION:
	case Event.KEY_ACTION_RELEASE:
	if (olde.key != key) {
	((KeyEvent)e).setKeyChar(olde.getKeyEventChar());
	}
	if (olde.modifiers != modifiers) {
	((KeyEvent)e).setModifiers(olde.modifiers);
	}
	break;
	default:
	break;
	}
	}
	}

	/*
	* 8. Special handling for 4061116 : Hook for browser to close modal
	* dialogs.
	*/
	if (id == WindowEvent.WINDOW_CLOSING && !e.isConsumed()) {
	if (toolkit instanceof WindowClosingListener) {
	windowClosingException =
	((WindowClosingListener)toolkit).
	windowClosingDelivered((WindowEvent)e);
	if (checkWindowClosingException()) {
	return;
	}
	}
	}

	/*
	* 9. Allow the peer to process the event.
	* Except KeyEvents, they will be processed by peer after
	* all KeyEventPostProcessors
	* (see DefaultKeyboardFocusManager.dispatchKeyEvent())
	*/
	if (!(e instanceof KeyEvent)) {
	ComponentPeer tpeer = peer;
	if (e instanceof FocusEvent && (tpeer == null \|\| tpeer instanceof LightweightPeer)) {
	// if focus owner is lightweight then its native container
	// processes event
	Component source = (Component)e.getSource();
	if (source != null) {
	Container target = source.getNativeContainer();
	if (target != null) {
	tpeer = target.getPeer();
	}
	}
	}
	if (tpeer != null) {
	tpeer.handleEvent(e);
	}
	}

	if (SunToolkit.isTouchKeyboardAutoShowEnabled() &&
	(toolkit instanceof SunToolkit) &&
	((e instanceof MouseEvent) \|\| (e instanceof FocusEvent))) {
	((SunToolkit)toolkit).showOrHideTouchKeyboard(this, e);
	}
	} // dispatchEventImpl()

	/*
	* If newEventsOnly is false, method is called so that ScrollPane can
	* override it and handle common-case mouse wheel scrolling. NOP
	* for Component.
	*/
	void autoProcessMouseWheel(MouseWheelEvent e) {}

	/*
	* Dispatch given MouseWheelEvent to the first ancestor for which
	* MouseWheelEvents are enabled.
	*
	* Returns whether or not event was dispatched to an ancestor
	*/
	boolean dispatchMouseWheelToAncestor(MouseWheelEvent e) {
	int newX, newY;
	newX = e.getX() + getX(); // Coordinates take into account at least
	newY = e.getY() + getY(); // the cursor's position relative to this
	// Component (e.getX()), and this Component's
	// position relative to its parent.
	MouseWheelEvent newMWE;

	if (eventLog.isLoggable(PlatformLogger.Level.FINEST)) {
	eventLog.finest("dispatchMouseWheelToAncestor");
	eventLog.finest("orig event src is of " + e.getSource().getClass());
	}

	/* parent field for Window refers to the owning Window.
	* MouseWheelEvents should NOT be propagated into owning Windows
	*/
	synchronized (getTreeLock()) {
	Container anc = getParent();
	while (anc != null && !anc.eventEnabled(e)) {
	// fix coordinates to be relative to new event source
	newX += anc.getX();
	newY += anc.getY();

	if (!(anc instanceof Window)) {
	anc = anc.getParent();
	}
	else {
	break;
	}
	}

	if (eventLog.isLoggable(PlatformLogger.Level.FINEST)) {
	eventLog.finest("new event src is " + anc.getClass());
	}

	if (anc != null && anc.eventEnabled(e)) {
	// Change event to be from new source, with new x,y
	// For now, just create a new event - yucky

	newMWE = new MouseWheelEvent(anc, // new source
	e.getID(),
	e.getWhen(),
	e.getModifiers(),
	newX, // x relative to new source
	newY, // y relative to new source
	e.getXOnScreen(),
	e.getYOnScreen(),
	e.getClickCount(),
	e.isPopupTrigger(),
	e.getScrollType(),
	e.getScrollAmount(),
	e.getWheelRotation(),
	e.getPreciseWheelRotation());
	((AWTEvent)e).copyPrivateDataInto(newMWE);
	// When dispatching a wheel event to
	// ancestor, there is no need trying to find descendant
	// lightweights to dispatch event to.
	// If we dispatch the event to toplevel ancestor,
	// this could encolse the loop: 6480024.
	anc.dispatchEventToSelf(newMWE);
	if (newMWE.isConsumed()) {
	e.consume();
	}
	return true;
	}
	}
	return false;
	}

	boolean checkWindowClosingException() {
	if (windowClosingException != null) {
	if (this instanceof Dialog) {
	((Dialog)this).interruptBlocking();
	} else {
	windowClosingException.fillInStackTrace();
	windowClosingException.printStackTrace();
	windowClosingException = null;
	}
	return true;
	}
	return false;
	}

	boolean areInputMethodsEnabled() {
	// in 1.2, we assume input method support is required for all
	// components that handle key events, but components can turn off
	// input methods by calling enableInputMethods(false).
	return ((eventMask & AWTEvent.INPUT_METHODS_ENABLED_MASK) != 0) &&
	((eventMask & AWTEvent.KEY_EVENT_MASK) != 0 \|\| keyListener != null);
	}

	// REMIND: remove when filtering is handled at lower level
	boolean eventEnabled(AWTEvent e) {
	return eventTypeEnabled(e.id);
	}

	boolean eventTypeEnabled(int type) {
	switch(type) {
	case ComponentEvent.COMPONENT_MOVED:
	case ComponentEvent.COMPONENT_RESIZED:
	case ComponentEvent.COMPONENT_SHOWN:
	case ComponentEvent.COMPONENT_HIDDEN:
	if ((eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0 \|\|
	componentListener != null) {
	return true;
	}
	break;
	case FocusEvent.FOCUS_GAINED:
	case FocusEvent.FOCUS_LOST:
	if ((eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0 \|\|
	focusListener != null) {
	return true;
	}
	break;
	case KeyEvent.KEY_PRESSED:
	case KeyEvent.KEY_RELEASED:
	case KeyEvent.KEY_TYPED:
	if ((eventMask & AWTEvent.KEY_EVENT_MASK) != 0 \|\|
	keyListener != null) {
	return true;
	}
	break;
	case MouseEvent.MOUSE_PRESSED:
	case MouseEvent.MOUSE_RELEASED:
	case MouseEvent.MOUSE_ENTERED:
	case MouseEvent.MOUSE_EXITED:
	case MouseEvent.MOUSE_CLICKED:
	if ((eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0 \|\|
	mouseListener != null) {
	return true;
	}
	break;
	case MouseEvent.MOUSE_MOVED:
	case MouseEvent.MOUSE_DRAGGED:
	if ((eventMask & AWTEvent.MOUSE_MOTION_EVENT_MASK) != 0 \|\|
	mouseMotionListener != null) {
	return true;
	}
	break;
	case MouseEvent.MOUSE_WHEEL:
	if ((eventMask & AWTEvent.MOUSE_WHEEL_EVENT_MASK) != 0 \|\|
	mouseWheelListener != null) {
	return true;
	}
	break;
	case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED:
	case InputMethodEvent.CARET_POSITION_CHANGED:
	if ((eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0 \|\|
	inputMethodListener != null) {
	return true;
	}
	break;
	case HierarchyEvent.HIERARCHY_CHANGED:
	if ((eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 \|\|
	hierarchyListener != null) {
	return true;
	}
	break;
	case HierarchyEvent.ANCESTOR_MOVED:
	case HierarchyEvent.ANCESTOR_RESIZED:
	if ((eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0 \|\|
	hierarchyBoundsListener != null) {
	return true;
	}
	break;
	case ActionEvent.ACTION_PERFORMED:
	if ((eventMask & AWTEvent.ACTION_EVENT_MASK) != 0) {
	return true;
	}
	break;
	case TextEvent.TEXT_VALUE_CHANGED:
	if ((eventMask & AWTEvent.TEXT_EVENT_MASK) != 0) {
	return true;
	}
	break;
	case ItemEvent.ITEM_STATE_CHANGED:
	if ((eventMask & AWTEvent.ITEM_EVENT_MASK) != 0) {
	return true;
	}
	break;
	case AdjustmentEvent.ADJUSTMENT_VALUE_CHANGED:
	if ((eventMask & AWTEvent.ADJUSTMENT_EVENT_MASK) != 0) {
	return true;
	}
	break;
	default:
	break;
	}
	//
	// Always pass on events defined by external programs.
	//
	if (type > AWTEvent.RESERVED_ID_MAX) {
	return true;
	}
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by dispatchEvent(AWTEvent).
	*/
	@Deprecated
	public boolean postEvent(Event e) {
	ComponentPeer peer = this.peer;

	if (handleEvent(e)) {
	e.consume();
	return true;
	}

	Component parent = this.parent;
	int eventx = e.x;
	int eventy = e.y;
	if (parent != null) {
	e.translate(x, y);
	if (parent.postEvent(e)) {
	e.consume();
	return true;
	}
	// restore coords
	e.x = eventx;
	e.y = eventy;
	}
	return false;
	}

	// Event source interfaces

	/**
	* Adds the specified component listener to receive component events from
	* this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the component listener
	* @see java.awt.event.ComponentEvent
	* @see java.awt.event.ComponentListener
	* @see #removeComponentListener
	* @see #getComponentListeners
	* @since JDK1.1
	*/
	public synchronized void addComponentListener(ComponentListener l) {
	if (l == null) {
	return;
	}
	componentListener = AWTEventMulticaster.add(componentListener, l);
	newEventsOnly = true;
	}

	/**
	* Removes the specified component listener so that it no longer
	* receives component events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	* @param l the component listener
	* @see java.awt.event.ComponentEvent
	* @see java.awt.event.ComponentListener
	* @see #addComponentListener
	* @see #getComponentListeners
	* @since JDK1.1
	*/
	public synchronized void removeComponentListener(ComponentListener l) {
	if (l == null) {
	return;
	}
	componentListener = AWTEventMulticaster.remove(componentListener, l);
	}

	/**
	* Returns an array of all the component listeners
	* registered on this component.
	*
	* @return all <code>ComponentListener</code>s of this component
	* or an empty array if no component
	* listeners are currently registered
	*
	* @see #addComponentListener
	* @see #removeComponentListener
	* @since 1.4
	*/
	public synchronized ComponentListener[] getComponentListeners() {
	return getListeners(ComponentListener.class);
	}

	/**
	* Adds the specified focus listener to receive focus events from
	* this component when this component gains input focus.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the focus listener
	* @see java.awt.event.FocusEvent
	* @see java.awt.event.FocusListener
	* @see #removeFocusListener
	* @see #getFocusListeners
	* @since JDK1.1
	*/
	public synchronized void addFocusListener(FocusListener l) {
	if (l == null) {
	return;
	}
	focusListener = AWTEventMulticaster.add(focusListener, l);
	newEventsOnly = true;

	// if this is a lightweight component, enable focus events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(AWTEvent.FOCUS_EVENT_MASK);
	}
	}

	/**
	* Removes the specified focus listener so that it no longer
	* receives focus events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the focus listener
	* @see java.awt.event.FocusEvent
	* @see java.awt.event.FocusListener
	* @see #addFocusListener
	* @see #getFocusListeners
	* @since JDK1.1
	*/
	public synchronized void removeFocusListener(FocusListener l) {
	if (l == null) {
	return;
	}
	focusListener = AWTEventMulticaster.remove(focusListener, l);
	}

	/**
	* Returns an array of all the focus listeners
	* registered on this component.
	*
	* @return all of this component's <code>FocusListener</code>s
	* or an empty array if no component
	* listeners are currently registered
	*
	* @see #addFocusListener
	* @see #removeFocusListener
	* @since 1.4
	*/
	public synchronized FocusListener[] getFocusListeners() {
	return getListeners(FocusListener.class);
	}

	/**
	* Adds the specified hierarchy listener to receive hierarchy changed
	* events from this component when the hierarchy to which this container
	* belongs changes.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the hierarchy listener
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyListener
	* @see #removeHierarchyListener
	* @see #getHierarchyListeners
	* @since 1.3
	*/
	public void addHierarchyListener(HierarchyListener l) {
	if (l == null) {
	return;
	}
	boolean notifyAncestors;
	synchronized (this) {
	notifyAncestors =
	(hierarchyListener == null &&
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) == 0);
	hierarchyListener = AWTEventMulticaster.add(hierarchyListener, l);
	notifyAncestors = (notifyAncestors && hierarchyListener != null);
	newEventsOnly = true;
	}
	if (notifyAncestors) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(AWTEvent.HIERARCHY_EVENT_MASK,
	1);
	}
	}
	}

	/**
	* Removes the specified hierarchy listener so that it no longer
	* receives hierarchy changed events from this component. This method
	* performs no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the hierarchy listener
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyListener
	* @see #addHierarchyListener
	* @see #getHierarchyListeners
	* @since 1.3
	*/
	public void removeHierarchyListener(HierarchyListener l) {
	if (l == null) {
	return;
	}
	boolean notifyAncestors;
	synchronized (this) {
	notifyAncestors =
	(hierarchyListener != null &&
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) == 0);
	hierarchyListener =
	AWTEventMulticaster.remove(hierarchyListener, l);
	notifyAncestors = (notifyAncestors && hierarchyListener == null);
	}
	if (notifyAncestors) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(AWTEvent.HIERARCHY_EVENT_MASK,
	-1);
	}
	}
	}

	/**
	* Returns an array of all the hierarchy listeners
	* registered on this component.
	*
	* @return all of this component's <code>HierarchyListener</code>s
	* or an empty array if no hierarchy
	* listeners are currently registered
	*
	* @see #addHierarchyListener
	* @see #removeHierarchyListener
	* @since 1.4
	*/
	public synchronized HierarchyListener[] getHierarchyListeners() {
	return getListeners(HierarchyListener.class);
	}

	/**
	* Adds the specified hierarchy bounds listener to receive hierarchy
	* bounds events from this component when the hierarchy to which this
	* container belongs changes.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the hierarchy bounds listener
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyBoundsListener
	* @see #removeHierarchyBoundsListener
	* @see #getHierarchyBoundsListeners
	* @since 1.3
	*/
	public void addHierarchyBoundsListener(HierarchyBoundsListener l) {
	if (l == null) {
	return;
	}
	boolean notifyAncestors;
	synchronized (this) {
	notifyAncestors =
	(hierarchyBoundsListener == null &&
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) == 0);
	hierarchyBoundsListener =
	AWTEventMulticaster.add(hierarchyBoundsListener, l);
	notifyAncestors = (notifyAncestors &&
	hierarchyBoundsListener != null);
	newEventsOnly = true;
	}
	if (notifyAncestors) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(
	AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK, 1);
	}
	}
	}

	/**
	* Removes the specified hierarchy bounds listener so that it no longer
	* receives hierarchy bounds events from this component. This method
	* performs no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the hierarchy bounds listener
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyBoundsListener
	* @see #addHierarchyBoundsListener
	* @see #getHierarchyBoundsListeners
	* @since 1.3
	*/
	public void removeHierarchyBoundsListener(HierarchyBoundsListener l) {
	if (l == null) {
	return;
	}
	boolean notifyAncestors;
	synchronized (this) {
	notifyAncestors =
	(hierarchyBoundsListener != null &&
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) == 0);
	hierarchyBoundsListener =
	AWTEventMulticaster.remove(hierarchyBoundsListener, l);
	notifyAncestors = (notifyAncestors &&
	hierarchyBoundsListener == null);
	}
	if (notifyAncestors) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(
	AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK, -1);
	}
	}
	}

	// Should only be called while holding the tree lock
	int numListening(long mask) {
	// One mask or the other, but not neither or both.
	if (eventLog.isLoggable(PlatformLogger.Level.FINE)) {
	if ((mask != AWTEvent.HIERARCHY_EVENT_MASK) &&
	(mask != AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK))
	{
	eventLog.fine("Assertion failed");
	}
	}
	if ((mask == AWTEvent.HIERARCHY_EVENT_MASK &&
	(hierarchyListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0)) \|\|
	(mask == AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK &&
	(hierarchyBoundsListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0))) {
	return 1;
	} else {
	return 0;
	}
	}

	// Should only be called while holding tree lock
	int countHierarchyMembers() {
	return 1;
	}
	// Should only be called while holding the tree lock
	int createHierarchyEvents(int id, Component changed,
	Container changedParent, long changeFlags,
	boolean enabledOnToolkit) {
	switch (id) {
	case HierarchyEvent.HIERARCHY_CHANGED:
	if (hierarchyListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 \|\|
	enabledOnToolkit) {
	HierarchyEvent e = new HierarchyEvent(this, id, changed,
	changedParent,
	changeFlags);
	dispatchEvent(e);
	return 1;
	}
	break;
	case HierarchyEvent.ANCESTOR_MOVED:
	case HierarchyEvent.ANCESTOR_RESIZED:
	if (eventLog.isLoggable(PlatformLogger.Level.FINE)) {
	if (changeFlags != 0) {
	eventLog.fine("Assertion (changeFlags == 0) failed");
	}
	}
	if (hierarchyBoundsListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0 \|\|
	enabledOnToolkit) {
	HierarchyEvent e = new HierarchyEvent(this, id, changed,
	changedParent);
	dispatchEvent(e);
	return 1;
	}
	break;
	default:
	// assert false
	if (eventLog.isLoggable(PlatformLogger.Level.FINE)) {
	eventLog.fine("This code must never be reached");
	}
	break;
	}
	return 0;
	}

	/**
	* Returns an array of all the hierarchy bounds listeners
	* registered on this component.
	*
	* @return all of this component's <code>HierarchyBoundsListener</code>s
	* or an empty array if no hierarchy bounds
	* listeners are currently registered
	*
	* @see #addHierarchyBoundsListener
	* @see #removeHierarchyBoundsListener
	* @since 1.4
	*/
	public synchronized HierarchyBoundsListener[] getHierarchyBoundsListeners() {
	return getListeners(HierarchyBoundsListener.class);
	}

	/*
	* Should only be called while holding the tree lock.
	* It's added only for overriding in java.awt.Window
	* because parent in Window is owner.
	*/
	void adjustListeningChildrenOnParent(long mask, int num) {
	if (parent != null) {
	parent.adjustListeningChildren(mask, num);
	}
	}

	/**
	* Adds the specified key listener to receive key events from
	* this component.
	* If l is null, no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the key listener.
	* @see java.awt.event.KeyEvent
	* @see java.awt.event.KeyListener
	* @see #removeKeyListener
	* @see #getKeyListeners
	* @since JDK1.1
	*/
	public synchronized void addKeyListener(KeyListener l) {
	if (l == null) {
	return;
	}
	keyListener = AWTEventMulticaster.add(keyListener, l);
	newEventsOnly = true;

	// if this is a lightweight component, enable key events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(AWTEvent.KEY_EVENT_MASK);
	}
	}

	/**
	* Removes the specified key listener so that it no longer
	* receives key events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the key listener
	* @see java.awt.event.KeyEvent
	* @see java.awt.event.KeyListener
	* @see #addKeyListener
	* @see #getKeyListeners
	* @since JDK1.1
	*/
	public synchronized void removeKeyListener(KeyListener l) {
	if (l == null) {
	return;
	}
	keyListener = AWTEventMulticaster.remove(keyListener, l);
	}

	/**
	* Returns an array of all the key listeners
	* registered on this component.
	*
	* @return all of this component's <code>KeyListener</code>s
	* or an empty array if no key
	* listeners are currently registered
	*
	* @see #addKeyListener
	* @see #removeKeyListener
	* @since 1.4
	*/
	public synchronized KeyListener[] getKeyListeners() {
	return getListeners(KeyListener.class);
	}

	/**
	* Adds the specified mouse listener to receive mouse events from
	* this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse listener
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseListener
	* @see #removeMouseListener
	* @see #getMouseListeners
	* @since JDK1.1
	*/
	public synchronized void addMouseListener(MouseListener l) {
	if (l == null) {
	return;
	}
	mouseListener = AWTEventMulticaster.add(mouseListener,l);
	newEventsOnly = true;

	// if this is a lightweight component, enable mouse events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(AWTEvent.MOUSE_EVENT_MASK);
	}
	}

	/**
	* Removes the specified mouse listener so that it no longer
	* receives mouse events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse listener
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseListener
	* @see #addMouseListener
	* @see #getMouseListeners
	* @since JDK1.1
	*/
	public synchronized void removeMouseListener(MouseListener l) {
	if (l == null) {
	return;
	}
	mouseListener = AWTEventMulticaster.remove(mouseListener, l);
	}

	/**
	* Returns an array of all the mouse listeners
	* registered on this component.
	*
	* @return all of this component's <code>MouseListener</code>s
	* or an empty array if no mouse
	* listeners are currently registered
	*
	* @see #addMouseListener
	* @see #removeMouseListener
	* @since 1.4
	*/
	public synchronized MouseListener[] getMouseListeners() {
	return getListeners(MouseListener.class);
	}

	/**
	* Adds the specified mouse motion listener to receive mouse motion
	* events from this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse motion listener
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseMotionListener
	* @see #removeMouseMotionListener
	* @see #getMouseMotionListeners
	* @since JDK1.1
	*/
	public synchronized void addMouseMotionListener(MouseMotionListener l) {
	if (l == null) {
	return;
	}
	mouseMotionListener = AWTEventMulticaster.add(mouseMotionListener,l);
	newEventsOnly = true;

	// if this is a lightweight component, enable mouse events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(AWTEvent.MOUSE_MOTION_EVENT_MASK);
	}
	}

	/**
	* Removes the specified mouse motion listener so that it no longer
	* receives mouse motion events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse motion listener
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseMotionListener
	* @see #addMouseMotionListener
	* @see #getMouseMotionListeners
	* @since JDK1.1
	*/
	public synchronized void removeMouseMotionListener(MouseMotionListener l) {
	if (l == null) {
	return;
	}
	mouseMotionListener = AWTEventMulticaster.remove(mouseMotionListener, l);
	}

	/**
	* Returns an array of all the mouse motion listeners
	* registered on this component.
	*
	* @return all of this component's <code>MouseMotionListener</code>s
	* or an empty array if no mouse motion
	* listeners are currently registered
	*
	* @see #addMouseMotionListener
	* @see #removeMouseMotionListener
	* @since 1.4
	*/
	public synchronized MouseMotionListener[] getMouseMotionListeners() {
	return getListeners(MouseMotionListener.class);
	}

	/**
	* Adds the specified mouse wheel listener to receive mouse wheel events
	* from this component. Containers also receive mouse wheel events from
	* sub-components.
	* <p>
	* For information on how mouse wheel events are dispatched, see
	* the class description for {@link MouseWheelEvent}.
	* <p>
	* If l is <code>null</code>, no exception is thrown and no
	* action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse wheel listener
	* @see java.awt.event.MouseWheelEvent
	* @see java.awt.event.MouseWheelListener
	* @see #removeMouseWheelListener
	* @see #getMouseWheelListeners
	* @since 1.4
	*/
	public synchronized void addMouseWheelListener(MouseWheelListener l) {
	if (l == null) {
	return;
	}
	mouseWheelListener = AWTEventMulticaster.add(mouseWheelListener,l);
	newEventsOnly = true;

	// if this is a lightweight component, enable mouse events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(AWTEvent.MOUSE_WHEEL_EVENT_MASK);
	}
	}

	/**
	* Removes the specified mouse wheel listener so that it no longer
	* receives mouse wheel events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If l is null, no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the mouse wheel listener.
	* @see java.awt.event.MouseWheelEvent
	* @see java.awt.event.MouseWheelListener
	* @see #addMouseWheelListener
	* @see #getMouseWheelListeners
	* @since 1.4
	*/
	public synchronized void removeMouseWheelListener(MouseWheelListener l) {
	if (l == null) {
	return;
	}
	mouseWheelListener = AWTEventMulticaster.remove(mouseWheelListener, l);
	}

	/**
	* Returns an array of all the mouse wheel listeners
	* registered on this component.
	*
	* @return all of this component's <code>MouseWheelListener</code>s
	* or an empty array if no mouse wheel
	* listeners are currently registered
	*
	* @see #addMouseWheelListener
	* @see #removeMouseWheelListener
	* @since 1.4
	*/
	public synchronized MouseWheelListener[] getMouseWheelListeners() {
	return getListeners(MouseWheelListener.class);
	}

	/**
	* Adds the specified input method listener to receive
	* input method events from this component. A component will
	* only receive input method events from input methods
	* if it also overrides <code>getInputMethodRequests</code> to return an
	* <code>InputMethodRequests</code> instance.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="{@docRoot}/java/awt/doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the input method listener
	* @see java.awt.event.InputMethodEvent
	* @see java.awt.event.InputMethodListener
	* @see #removeInputMethodListener
	* @see #getInputMethodListeners
	* @see #getInputMethodRequests
	* @since 1.2
	*/
	public synchronized void addInputMethodListener(InputMethodListener l) {
	if (l == null) {
	return;
	}
	inputMethodListener = AWTEventMulticaster.add(inputMethodListener, l);
	newEventsOnly = true;
	}

	/**
	* Removes the specified input method listener so that it no longer
	* receives input method events from this component. This method performs
	* no function, nor does it throw an exception, if the listener
	* specified by the argument was not previously added to this component.
	* If listener <code>l</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	* <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads"
	* >AWT Threading Issues</a> for details on AWT's threading model.
	*
	* @param l the input method listener
	* @see java.awt.event.InputMethodEvent
	* @see java.awt.event.InputMethodListener
	* @see #addInputMethodListener
	* @see #getInputMethodListeners
	* @since 1.2
	*/
	public synchronized void removeInputMethodListener(InputMethodListener l) {
	if (l == null) {
	return;
	}
	inputMethodListener = AWTEventMulticaster.remove(inputMethodListener, l);
	}

	/**
	* Returns an array of all the input method listeners
	* registered on this component.
	*
	* @return all of this component's <code>InputMethodListener</code>s
	* or an empty array if no input method
	* listeners are currently registered
	*
	* @see #addInputMethodListener
	* @see #removeInputMethodListener
	* @since 1.4
	*/
	public synchronized InputMethodListener[] getInputMethodListeners() {
	return getListeners(InputMethodListener.class);
	}

	/**
	* Returns an array of all the objects currently registered
	* as <code><em>Foo</em>Listener</code>s
	* upon this <code>Component</code>.
	* <code><em>Foo</em>Listener</code>s are registered using the
	* <code>add<em>Foo</em>Listener</code> method.
	*
	* <p>
	* You can specify the <code>listenerType</code> argument
	* with a class literal, such as
	* <code><em>Foo</em>Listener.class</code>.
	* For example, you can query a
	* <code>Component</code> <code>c</code>
	* for its mouse listeners with the following code:
	*
	* <pre>MouseListener[] mls = (MouseListener[])(c.getListeners(MouseListener.class));</pre>
	*
	* If no such listeners exist, this method returns an empty array.
	*
	* @param listenerType the type of listeners requested; this parameter
	* should specify an interface that descends from
	* <code>java.util.EventListener</code>
	* @return an array of all objects registered as
	* <code><em>Foo</em>Listener</code>s on this component,
	* or an empty array if no such listeners have been added
	* @exception ClassCastException if <code>listenerType</code>
	* doesn't specify a class or interface that implements
	* <code>java.util.EventListener</code>
	* @throws NullPointerException if {@code listenerType} is {@code null}
	* @see #getComponentListeners
	* @see #getFocusListeners
	* @see #getHierarchyListeners
	* @see #getHierarchyBoundsListeners
	* @see #getKeyListeners
	* @see #getMouseListeners
	* @see #getMouseMotionListeners
	* @see #getMouseWheelListeners
	* @see #getInputMethodListeners
	* @see #getPropertyChangeListeners
	*
	* @since 1.3
	*/
	@SuppressWarnings("unchecked")
	public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
	EventListener l = null;
	if (listenerType == ComponentListener.class) {
	l = componentListener;
	} else if (listenerType == FocusListener.class) {
	l = focusListener;
	} else if (listenerType == HierarchyListener.class) {
	l = hierarchyListener;
	} else if (listenerType == HierarchyBoundsListener.class) {
	l = hierarchyBoundsListener;
	} else if (listenerType == KeyListener.class) {
	l = keyListener;
	} else if (listenerType == MouseListener.class) {
	l = mouseListener;
	} else if (listenerType == MouseMotionListener.class) {
	l = mouseMotionListener;
	} else if (listenerType == MouseWheelListener.class) {
	l = mouseWheelListener;
	} else if (listenerType == InputMethodListener.class) {
	l = inputMethodListener;
	} else if (listenerType == PropertyChangeListener.class) {
	return (T[])getPropertyChangeListeners();
	}
	return AWTEventMulticaster.getListeners(l, listenerType);
	}

	/**
	* Gets the input method request handler which supports
	* requests from input methods for this component. A component
	* that supports on-the-spot text input must override this
	* method to return an <code>InputMethodRequests</code> instance.
	* At the same time, it also has to handle input method events.
	*
	* @return the input method request handler for this component,
	* <code>null</code> by default
	* @see #addInputMethodListener
	* @since 1.2
	*/
	public InputMethodRequests getInputMethodRequests() {
	return null;
	}

	/**
	* Gets the input context used by this component for handling
	* the communication with input methods when text is entered
	* in this component. By default, the input context used for
	* the parent component is returned. Components may
	* override this to return a private input context.
	*
	* @return the input context used by this component;
	* <code>null</code> if no context can be determined
	* @since 1.2
	*/
	public InputContext getInputContext() {
	Container parent = this.parent;
	if (parent == null) {
	return null;
	} else {
	return parent.getInputContext();
	}
	}

	/**
	* Enables the events defined by the specified event mask parameter
	* to be delivered to this component.
	* <p>
	* Event types are automatically enabled when a listener for
	* that event type is added to the component.
	* <p>
	* This method only needs to be invoked by subclasses of
	* <code>Component</code> which desire to have the specified event
	* types delivered to <code>processEvent</code> regardless of whether
	* or not a listener is registered.
	* @param eventsToEnable the event mask defining the event types
	* @see #processEvent
	* @see #disableEvents
	* @see AWTEvent
	* @since JDK1.1
	*/
	protected final void enableEvents(long eventsToEnable) {
	long notifyAncestors = 0;
	synchronized (this) {
	if ((eventsToEnable & AWTEvent.HIERARCHY_EVENT_MASK) != 0 &&
	hierarchyListener == null &&
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) == 0) {
	notifyAncestors \|= AWTEvent.HIERARCHY_EVENT_MASK;
	}
	if ((eventsToEnable & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0 &&
	hierarchyBoundsListener == null &&
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) == 0) {
	notifyAncestors \|= AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK;
	}
	eventMask \|= eventsToEnable;
	newEventsOnly = true;
	}

	// if this is a lightweight component, enable mouse events
	// in the native container.
	if (peer instanceof LightweightPeer) {
	parent.proxyEnableEvents(eventMask);
	}
	if (notifyAncestors != 0) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(notifyAncestors, 1);
	}
	}
	}

	/**
	* Disables the events defined by the specified event mask parameter
	* from being delivered to this component.
	* @param eventsToDisable the event mask defining the event types
	* @see #enableEvents
	* @since JDK1.1
	*/
	protected final void disableEvents(long eventsToDisable) {
	long notifyAncestors = 0;
	synchronized (this) {
	if ((eventsToDisable & AWTEvent.HIERARCHY_EVENT_MASK) != 0 &&
	hierarchyListener == null &&
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0) {
	notifyAncestors \|= AWTEvent.HIERARCHY_EVENT_MASK;
	}
	if ((eventsToDisable & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK)!=0 &&
	hierarchyBoundsListener == null &&
	(eventMask & AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK) != 0) {
	notifyAncestors \|= AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK;
	}
	eventMask &= ~eventsToDisable;
	}
	if (notifyAncestors != 0) {
	synchronized (getTreeLock()) {
	adjustListeningChildrenOnParent(notifyAncestors, -1);
	}
	}
	}

	transient sun.awt.EventQueueItem[] eventCache;

	/**
	* @see #isCoalescingEnabled
	* @see #checkCoalescing
	*/
	transient private boolean coalescingEnabled = checkCoalescing();

	/**
	* Weak map of known coalesceEvent overriders.
	* Value indicates whether overriden.
	* Bootstrap classes are not included.
	*/
	private static final Map<Class<?>, Boolean> coalesceMap =
	new java.util.WeakHashMap<Class<?>, Boolean>();

	/**
	* Indicates whether this class overrides coalesceEvents.
	* It is assumed that all classes that are loaded from the bootstrap
	* do not.
	* The boostrap class loader is assumed to be represented by null.
	* We do not check that the method really overrides
	* (it might be static, private or package private).
	*/
	private boolean checkCoalescing() {
	if (getClass().getClassLoader()==null) {
	return false;
	}
	final Class<? extends Component> clazz = getClass();
	synchronized (coalesceMap) {
	// Check cache.
	Boolean value = coalesceMap.get(clazz);
	if (value != null) {
	return value;
	}

	// Need to check non-bootstraps.
	Boolean enabled = java.security.AccessController.doPrivileged(
	new java.security.PrivilegedAction<Boolean>() {
	public Boolean run() {
	return isCoalesceEventsOverriden(clazz);
	}
	}
	);
	coalesceMap.put(clazz, enabled);
	return enabled;
	}
	}

	/**
	* Parameter types of coalesceEvents(AWTEvent,AWTEVent).
	*/
	private static final Class[] coalesceEventsParams = {
	AWTEvent.class, AWTEvent.class
	};

	/**
	* Indicates whether a class or its superclasses override coalesceEvents.
	* Must be called with lock on coalesceMap and privileged.
	* @see checkCoalescing
	*/
	private static boolean isCoalesceEventsOverriden(Class<?> clazz) {
	assert Thread.holdsLock(coalesceMap);

	// First check superclass - we may not need to bother ourselves.
	Class<?> superclass = clazz.getSuperclass();
	if (superclass == null) {
	// Only occurs on implementations that
	// do not use null to represent the bootsrap class loader.
	return false;
	}
	if (superclass.getClassLoader() != null) {
	Boolean value = coalesceMap.get(superclass);
	if (value == null) {
	// Not done already - recurse.
	if (isCoalesceEventsOverriden(superclass)) {
	coalesceMap.put(superclass, true);
	return true;
	}
	} else if (value) {
	return true;
	}
	}

	try {
	// Throws if not overriden.
	clazz.getDeclaredMethod(
	"coalesceEvents", coalesceEventsParams
	);
	return true;
	} catch (NoSuchMethodException e) {
	// Not present in this class.
	return false;
	}
	}

	/**
	* Indicates whether coalesceEvents may do something.
	*/
	final boolean isCoalescingEnabled() {
	return coalescingEnabled;
	}


	/**
	* Potentially coalesce an event being posted with an existing
	* event. This method is called by <code>EventQueue.postEvent</code>
	* if an event with the same ID as the event to be posted is found in
	* the queue (both events must have this component as their source).
	* This method either returns a coalesced event which replaces
	* the existing event (and the new event is then discarded), or
	* <code>null</code> to indicate that no combining should be done
	* (add the second event to the end of the queue). Either event
	* parameter may be modified and returned, as the other one is discarded
	* unless <code>null</code> is returned.
	* <p>
	* This implementation of <code>coalesceEvents</code> coalesces
	* two event types: mouse move (and drag) events,
	* and paint (and update) events.
	* For mouse move events the last event is always returned, causing
	* intermediate moves to be discarded. For paint events, the new
	* event is coalesced into a complex <code>RepaintArea</code> in the peer.
	* The new <code>AWTEvent</code> is always returned.
	*
	* @param existingEvent the event already on the <code>EventQueue</code>
	* @param newEvent the event being posted to the
	* <code>EventQueue</code>
	* @return a coalesced event, or <code>null</code> indicating that no
	* coalescing was done
	*/
	protected AWTEvent coalesceEvents(AWTEvent existingEvent,
	AWTEvent newEvent) {
	return null;
	}

	/**
	* Processes events occurring on this component. By default this
	* method calls the appropriate
	* <code>process<event type>Event</code>
	* method for the given class of event.
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the event
	* @see #processComponentEvent
	* @see #processFocusEvent
	* @see #processKeyEvent
	* @see #processMouseEvent
	* @see #processMouseMotionEvent
	* @see #processInputMethodEvent
	* @see #processHierarchyEvent
	* @see #processMouseWheelEvent
	* @since JDK1.1
	*/
	protected void processEvent(AWTEvent e) {
	if (e instanceof FocusEvent) {
	processFocusEvent((FocusEvent)e);

	} else if (e instanceof MouseEvent) {
	switch(e.getID()) {
	case MouseEvent.MOUSE_PRESSED:
	case MouseEvent.MOUSE_RELEASED:
	case MouseEvent.MOUSE_CLICKED:
	case MouseEvent.MOUSE_ENTERED:
	case MouseEvent.MOUSE_EXITED:
	processMouseEvent((MouseEvent)e);
	break;
	case MouseEvent.MOUSE_MOVED:
	case MouseEvent.MOUSE_DRAGGED:
	processMouseMotionEvent((MouseEvent)e);
	break;
	case MouseEvent.MOUSE_WHEEL:
	processMouseWheelEvent((MouseWheelEvent)e);
	break;
	}

	} else if (e instanceof KeyEvent) {
	processKeyEvent((KeyEvent)e);

	} else if (e instanceof ComponentEvent) {
	processComponentEvent((ComponentEvent)e);
	} else if (e instanceof InputMethodEvent) {
	processInputMethodEvent((InputMethodEvent)e);
	} else if (e instanceof HierarchyEvent) {
	switch (e.getID()) {
	case HierarchyEvent.HIERARCHY_CHANGED:
	processHierarchyEvent((HierarchyEvent)e);
	break;
	case HierarchyEvent.ANCESTOR_MOVED:
	case HierarchyEvent.ANCESTOR_RESIZED:
	processHierarchyBoundsEvent((HierarchyEvent)e);
	break;
	}
	}
	}

	/**
	* Processes component events occurring on this component by
	* dispatching them to any registered
	* <code>ComponentListener</code> objects.
	* <p>
	* This method is not called unless component events are
	* enabled for this component. Component events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>ComponentListener</code> object is registered
	* via <code>addComponentListener</code>.
	* <li>Component events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the component event
	* @see java.awt.event.ComponentEvent
	* @see java.awt.event.ComponentListener
	* @see #addComponentListener
	* @see #enableEvents
	* @since JDK1.1
	*/
	protected void processComponentEvent(ComponentEvent e) {
	ComponentListener listener = componentListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case ComponentEvent.COMPONENT_RESIZED:
	listener.componentResized(e);
	break;
	case ComponentEvent.COMPONENT_MOVED:
	listener.componentMoved(e);
	break;
	case ComponentEvent.COMPONENT_SHOWN:
	listener.componentShown(e);
	break;
	case ComponentEvent.COMPONENT_HIDDEN:
	listener.componentHidden(e);
	break;
	}
	}
	}

	/**
	* Processes focus events occurring on this component by
	* dispatching them to any registered
	* <code>FocusListener</code> objects.
	* <p>
	* This method is not called unless focus events are
	* enabled for this component. Focus events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>FocusListener</code> object is registered
	* via <code>addFocusListener</code>.
	* <li>Focus events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>
	* If focus events are enabled for a <code>Component</code>,
	* the current <code>KeyboardFocusManager</code> determines
	* whether or not a focus event should be dispatched to
	* registered <code>FocusListener</code> objects. If the
	* events are to be dispatched, the <code>KeyboardFocusManager</code>
	* calls the <code>Component</code>'s <code>dispatchEvent</code>
	* method, which results in a call to the <code>Component</code>'s
	* <code>processFocusEvent</code> method.
	* <p>
	* If focus events are enabled for a <code>Component</code>, calling
	* the <code>Component</code>'s <code>dispatchEvent</code> method
	* with a <code>FocusEvent</code> as the argument will result in a
	* call to the <code>Component</code>'s <code>processFocusEvent</code>
	* method regardless of the current <code>KeyboardFocusManager</code>.
	*
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the focus event
	* @see java.awt.event.FocusEvent
	* @see java.awt.event.FocusListener
	* @see java.awt.KeyboardFocusManager
	* @see #addFocusListener
	* @see #enableEvents
	* @see #dispatchEvent
	* @since JDK1.1
	*/
	protected void processFocusEvent(FocusEvent e) {
	FocusListener listener = focusListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case FocusEvent.FOCUS_GAINED:
	listener.focusGained(e);
	break;
	case FocusEvent.FOCUS_LOST:
	listener.focusLost(e);
	break;
	}
	}
	}

	/**
	* Processes key events occurring on this component by
	* dispatching them to any registered
	* <code>KeyListener</code> objects.
	* <p>
	* This method is not called unless key events are
	* enabled for this component. Key events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>KeyListener</code> object is registered
	* via <code>addKeyListener</code>.
	* <li>Key events are enabled via <code>enableEvents</code>.
	* </ul>
	*
	* <p>
	* If key events are enabled for a <code>Component</code>,
	* the current <code>KeyboardFocusManager</code> determines
	* whether or not a key event should be dispatched to
	* registered <code>KeyListener</code> objects. The
	* <code>DefaultKeyboardFocusManager</code> will not dispatch
	* key events to a <code>Component</code> that is not the focus
	* owner or is not showing.
	* <p>
	* As of J2SE 1.4, <code>KeyEvent</code>s are redirected to
	* the focus owner. Please see the
	* <a href="doc-files/FocusSpec.html">Focus Specification</a>
	* for further information.
	* <p>
	* Calling a <code>Component</code>'s <code>dispatchEvent</code>
	* method with a <code>KeyEvent</code> as the argument will
	* result in a call to the <code>Component</code>'s
	* <code>processKeyEvent</code> method regardless of the
	* current <code>KeyboardFocusManager</code> as long as the
	* component is showing, focused, and enabled, and key events
	* are enabled on it.
	* <p>If the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the key event
	* @see java.awt.event.KeyEvent
	* @see java.awt.event.KeyListener
	* @see java.awt.KeyboardFocusManager
	* @see java.awt.DefaultKeyboardFocusManager
	* @see #processEvent
	* @see #dispatchEvent
	* @see #addKeyListener
	* @see #enableEvents
	* @see #isShowing
	* @since JDK1.1
	*/
	protected void processKeyEvent(KeyEvent e) {
	KeyListener listener = keyListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case KeyEvent.KEY_TYPED:
	listener.keyTyped(e);
	break;
	case KeyEvent.KEY_PRESSED:
	listener.keyPressed(e);
	break;
	case KeyEvent.KEY_RELEASED:
	listener.keyReleased(e);
	break;
	}
	}
	}

	/**
	* Processes mouse events occurring on this component by
	* dispatching them to any registered
	* <code>MouseListener</code> objects.
	* <p>
	* This method is not called unless mouse events are
	* enabled for this component. Mouse events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>MouseListener</code> object is registered
	* via <code>addMouseListener</code>.
	* <li>Mouse events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the mouse event
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseListener
	* @see #addMouseListener
	* @see #enableEvents
	* @since JDK1.1
	*/
	protected void processMouseEvent(MouseEvent e) {
	MouseListener listener = mouseListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case MouseEvent.MOUSE_PRESSED:
	listener.mousePressed(e);
	break;
	case MouseEvent.MOUSE_RELEASED:
	listener.mouseReleased(e);
	break;
	case MouseEvent.MOUSE_CLICKED:
	listener.mouseClicked(e);
	break;
	case MouseEvent.MOUSE_EXITED:
	listener.mouseExited(e);
	break;
	case MouseEvent.MOUSE_ENTERED:
	listener.mouseEntered(e);
	break;
	}
	}
	}

	/**
	* Processes mouse motion events occurring on this component by
	* dispatching them to any registered
	* <code>MouseMotionListener</code> objects.
	* <p>
	* This method is not called unless mouse motion events are
	* enabled for this component. Mouse motion events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>MouseMotionListener</code> object is registered
	* via <code>addMouseMotionListener</code>.
	* <li>Mouse motion events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the mouse motion event
	* @see java.awt.event.MouseEvent
	* @see java.awt.event.MouseMotionListener
	* @see #addMouseMotionListener
	* @see #enableEvents
	* @since JDK1.1
	*/
	protected void processMouseMotionEvent(MouseEvent e) {
	MouseMotionListener listener = mouseMotionListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case MouseEvent.MOUSE_MOVED:
	listener.mouseMoved(e);
	break;
	case MouseEvent.MOUSE_DRAGGED:
	listener.mouseDragged(e);
	break;
	}
	}
	}

	/**
	* Processes mouse wheel events occurring on this component by
	* dispatching them to any registered
	* <code>MouseWheelListener</code> objects.
	* <p>
	* This method is not called unless mouse wheel events are
	* enabled for this component. Mouse wheel events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>A <code>MouseWheelListener</code> object is registered
	* via <code>addMouseWheelListener</code>.
	* <li>Mouse wheel events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>
	* For information on how mouse wheel events are dispatched, see
	* the class description for {@link MouseWheelEvent}.
	* <p>
	* Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the mouse wheel event
	* @see java.awt.event.MouseWheelEvent
	* @see java.awt.event.MouseWheelListener
	* @see #addMouseWheelListener
	* @see #enableEvents
	* @since 1.4
	*/
	protected void processMouseWheelEvent(MouseWheelEvent e) {
	MouseWheelListener listener = mouseWheelListener;
	if (listener != null) {
	int id = e.getID();
	switch(id) {
	case MouseEvent.MOUSE_WHEEL:
	listener.mouseWheelMoved(e);
	break;
	}
	}
	}

	boolean postsOldMouseEvents() {
	return false;
	}

	/**
	* Processes input method events occurring on this component by
	* dispatching them to any registered
	* <code>InputMethodListener</code> objects.
	* <p>
	* This method is not called unless input method events
	* are enabled for this component. Input method events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>An <code>InputMethodListener</code> object is registered
	* via <code>addInputMethodListener</code>.
	* <li>Input method events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the input method event
	* @see java.awt.event.InputMethodEvent
	* @see java.awt.event.InputMethodListener
	* @see #addInputMethodListener
	* @see #enableEvents
	* @since 1.2
	*/
	protected void processInputMethodEvent(InputMethodEvent e) {
	InputMethodListener listener = inputMethodListener;
	if (listener != null) {
	int id = e.getID();
	switch (id) {
	case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED:
	listener.inputMethodTextChanged(e);
	break;
	case InputMethodEvent.CARET_POSITION_CHANGED:
	listener.caretPositionChanged(e);
	break;
	}
	}
	}

	/**
	* Processes hierarchy events occurring on this component by
	* dispatching them to any registered
	* <code>HierarchyListener</code> objects.
	* <p>
	* This method is not called unless hierarchy events
	* are enabled for this component. Hierarchy events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>An <code>HierarchyListener</code> object is registered
	* via <code>addHierarchyListener</code>.
	* <li>Hierarchy events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the hierarchy event
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyListener
	* @see #addHierarchyListener
	* @see #enableEvents
	* @since 1.3
	*/
	protected void processHierarchyEvent(HierarchyEvent e) {
	HierarchyListener listener = hierarchyListener;
	if (listener != null) {
	int id = e.getID();
	switch (id) {
	case HierarchyEvent.HIERARCHY_CHANGED:
	listener.hierarchyChanged(e);
	break;
	}
	}
	}

	/**
	* Processes hierarchy bounds events occurring on this component by
	* dispatching them to any registered
	* <code>HierarchyBoundsListener</code> objects.
	* <p>
	* This method is not called unless hierarchy bounds events
	* are enabled for this component. Hierarchy bounds events are enabled
	* when one of the following occurs:
	* <ul>
	* <li>An <code>HierarchyBoundsListener</code> object is registered
	* via <code>addHierarchyBoundsListener</code>.
	* <li>Hierarchy bounds events are enabled via <code>enableEvents</code>.
	* </ul>
	* <p>Note that if the event parameter is <code>null</code>
	* the behavior is unspecified and may result in an
	* exception.
	*
	* @param e the hierarchy event
	* @see java.awt.event.HierarchyEvent
	* @see java.awt.event.HierarchyBoundsListener
	* @see #addHierarchyBoundsListener
	* @see #enableEvents
	* @since 1.3
	*/
	protected void processHierarchyBoundsEvent(HierarchyEvent e) {
	HierarchyBoundsListener listener = hierarchyBoundsListener;
	if (listener != null) {
	int id = e.getID();
	switch (id) {
	case HierarchyEvent.ANCESTOR_MOVED:
	listener.ancestorMoved(e);
	break;
	case HierarchyEvent.ANCESTOR_RESIZED:
	listener.ancestorResized(e);
	break;
	}
	}
	}

	/**
	* @deprecated As of JDK version 1.1
	* replaced by processEvent(AWTEvent).
	*/
	@Deprecated
	public boolean handleEvent(Event evt) {
	switch (evt.id) {
	case Event.MOUSE_ENTER:
	return mouseEnter(evt, evt.x, evt.y);

	case Event.MOUSE_EXIT:
	return mouseExit(evt, evt.x, evt.y);

	case Event.MOUSE_MOVE:
	return mouseMove(evt, evt.x, evt.y);

	case Event.MOUSE_DOWN:
	return mouseDown(evt, evt.x, evt.y);

	case Event.MOUSE_DRAG:
	return mouseDrag(evt, evt.x, evt.y);

	case Event.MOUSE_UP:
	return mouseUp(evt, evt.x, evt.y);

	case Event.KEY_PRESS:
	case Event.KEY_ACTION:
	return keyDown(evt, evt.key);

	case Event.KEY_RELEASE:
	case Event.KEY_ACTION_RELEASE:
	return keyUp(evt, evt.key);

	case Event.ACTION_EVENT:
	return action(evt, evt.arg);
	case Event.GOT_FOCUS:
	return gotFocus(evt, evt.arg);
	case Event.LOST_FOCUS:
	return lostFocus(evt, evt.arg);
	}
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseDown(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseMotionEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseDrag(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseUp(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseMotionEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseMove(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseEnter(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processMouseEvent(MouseEvent).
	*/
	@Deprecated
	public boolean mouseExit(Event evt, int x, int y) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processKeyEvent(KeyEvent).
	*/
	@Deprecated
	public boolean keyDown(Event evt, int key) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processKeyEvent(KeyEvent).
	*/
	@Deprecated
	public boolean keyUp(Event evt, int key) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* should register this component as ActionListener on component
	* which fires action events.
	*/
	@Deprecated
	public boolean action(Event evt, Object what) {
	return false;
	}

	/**
	* Makes this <code>Component</code> displayable by connecting it to a
	* native screen resource.
	* This method is called internally by the toolkit and should
	* not be called directly by programs.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	* @see #isDisplayable
	* @see #removeNotify
	* @see #invalidate
	* @since JDK1.0
	*/
	public void addNotify() {
	synchronized (getTreeLock()) {
	ComponentPeer peer = this.peer;
	if (peer == null \|\| peer instanceof LightweightPeer){
	if (peer == null) {
	// Update both the Component's peer variable and the local
	// variable we use for thread safety.
	this.peer = peer = getToolkit().createComponent(this);
	}

	// This is a lightweight component which means it won't be
	// able to get window-related events by itself. If any
	// have been enabled, then the nearest native container must
	// be enabled.
	if (parent != null) {
	long mask = 0;
	if ((mouseListener != null) \|\| ((eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0)) {
	mask \|= AWTEvent.MOUSE_EVENT_MASK;
	}
	if ((mouseMotionListener != null) \|\|
	((eventMask & AWTEvent.MOUSE_MOTION_EVENT_MASK) != 0)) {
	mask \|= AWTEvent.MOUSE_MOTION_EVENT_MASK;
	}
	if ((mouseWheelListener != null ) \|\|
	((eventMask & AWTEvent.MOUSE_WHEEL_EVENT_MASK) != 0)) {
	mask \|= AWTEvent.MOUSE_WHEEL_EVENT_MASK;
	}
	if (focusListener != null \|\| (eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0) {
	mask \|= AWTEvent.FOCUS_EVENT_MASK;
	}
	if (keyListener != null \|\| (eventMask & AWTEvent.KEY_EVENT_MASK) != 0) {
	mask \|= AWTEvent.KEY_EVENT_MASK;
	}
	if (mask != 0) {
	parent.proxyEnableEvents(mask);
	}
	}
	} else {
	// It's native. If the parent is lightweight it will need some
	// help.
	Container parent = getContainer();
	if (parent != null && parent.isLightweight()) {
	relocateComponent();
	if (!parent.isRecursivelyVisibleUpToHeavyweightContainer())
	{
	peer.setVisible(false);
	}
	}
	}
	invalidate();

	int npopups = (popups != null? popups.size() : 0);
	for (int i = 0 ; i < npopups ; i++) {
	PopupMenu popup = popups.elementAt(i);
	popup.addNotify();
	}

	if (dropTarget != null) dropTarget.addNotify(peer);

	peerFont = getFont();

	if (getContainer() != null && !isAddNotifyComplete) {
	getContainer().increaseComponentCount(this);
	}


	// Update stacking order
	updateZOrder();

	if (!isAddNotifyComplete) {
	mixOnShowing();
	}

	isAddNotifyComplete = true;

	if (hierarchyListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 \|\|
	Toolkit.enabledOnToolkit(AWTEvent.HIERARCHY_EVENT_MASK)) {
	HierarchyEvent e =
	new HierarchyEvent(this, HierarchyEvent.HIERARCHY_CHANGED,
	this, parent,
	HierarchyEvent.DISPLAYABILITY_CHANGED \|
	((isRecursivelyVisible())
	? HierarchyEvent.SHOWING_CHANGED
	: 0));
	dispatchEvent(e);
	}
	}
	}

	/**
	* Makes this <code>Component</code> undisplayable by destroying it native
	* screen resource.
	* <p>
	* This method is called by the toolkit internally and should
	* not be called directly by programs. Code overriding
	* this method should call <code>super.removeNotify</code> as
	* the first line of the overriding method.
	*
	* @see #isDisplayable
	* @see #addNotify
	* @since JDK1.0
	*/
	public void removeNotify() {
	KeyboardFocusManager.clearMostRecentFocusOwner(this);
	if (KeyboardFocusManager.getCurrentKeyboardFocusManager().
	getPermanentFocusOwner() == this)
	{
	KeyboardFocusManager.getCurrentKeyboardFocusManager().
	setGlobalPermanentFocusOwner(null);
	}

	synchronized (getTreeLock()) {
	if (isFocusOwner() && KeyboardFocusManager.isAutoFocusTransferEnabledFor(this)) {
	transferFocus(true);
	}

	if (getContainer() != null && isAddNotifyComplete) {
	getContainer().decreaseComponentCount(this);
	}

	int npopups = (popups != null? popups.size() : 0);
	for (int i = 0 ; i < npopups ; i++) {
	PopupMenu popup = popups.elementAt(i);
	popup.removeNotify();
	}
	// If there is any input context for this component, notify
	// that this component is being removed. (This has to be done
	// before hiding peer.)
	if ((eventMask & AWTEvent.INPUT_METHODS_ENABLED_MASK) != 0) {
	InputContext inputContext = getInputContext();
	if (inputContext != null) {
	inputContext.removeNotify(this);
	}
	}

	ComponentPeer p = peer;
	if (p != null) {
	boolean isLightweight = isLightweight();

	if (bufferStrategy instanceof FlipBufferStrategy) {
	((FlipBufferStrategy)bufferStrategy).destroyBuffers();
	}

	if (dropTarget != null) dropTarget.removeNotify(peer);

	// Hide peer first to stop system events such as cursor moves.
	if (visible) {
	p.setVisible(false);
	}

	peer = null; // Stop peer updates.
	peerFont = null;

	Toolkit.getEventQueue().removeSourceEvents(this, false);
	KeyboardFocusManager.getCurrentKeyboardFocusManager().
	discardKeyEvents(this);

	p.dispose();

	mixOnHiding(isLightweight);

	isAddNotifyComplete = false;
	// Nullifying compoundShape means that the component has normal shape
	// (or has no shape at all).
	this.compoundShape = null;
	}

	if (hierarchyListener != null \|\|
	(eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0 \|\|
	Toolkit.enabledOnToolkit(AWTEvent.HIERARCHY_EVENT_MASK)) {
	HierarchyEvent e =
	new HierarchyEvent(this, HierarchyEvent.HIERARCHY_CHANGED,
	this, parent,
	HierarchyEvent.DISPLAYABILITY_CHANGED \|
	((isRecursivelyVisible())
	? HierarchyEvent.SHOWING_CHANGED
	: 0));
	dispatchEvent(e);
	}
	}
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processFocusEvent(FocusEvent).
	*/
	@Deprecated
	public boolean gotFocus(Event evt, Object what) {
	return false;
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by processFocusEvent(FocusEvent).
	*/
	@Deprecated
	public boolean lostFocus(Event evt, Object what) {
	return false;
	}

	/**
	* Returns whether this <code>Component</code> can become the focus
	* owner.
	*
	* @return <code>true</code> if this <code>Component</code> is
	* focusable; <code>false</code> otherwise
	* @see #setFocusable
	* @since JDK1.1
	* @deprecated As of 1.4, replaced by <code>isFocusable()</code>.
	*/
	@Deprecated
	public boolean isFocusTraversable() {
	if (isFocusTraversableOverridden == FOCUS_TRAVERSABLE_UNKNOWN) {
	isFocusTraversableOverridden = FOCUS_TRAVERSABLE_DEFAULT;
	}
	return focusable;
	}

	/**
	* Returns whether this Component can be focused.
	*
	* @return <code>true</code> if this Component is focusable;
	* <code>false</code> otherwise.
	* @see #setFocusable
	* @since 1.4
	*/
	public boolean isFocusable() {
	return isFocusTraversable();
	}

	/**
	* Sets the focusable state of this Component to the specified value. This
	* value overrides the Component's default focusability.
	*
	* @param focusable indicates whether this Component is focusable
	* @see #isFocusable
	* @since 1.4
	* @beaninfo
	* bound: true
	*/
	public void setFocusable(boolean focusable) {
	boolean oldFocusable;
	synchronized (this) {
	oldFocusable = this.focusable;
	this.focusable = focusable;
	}
	isFocusTraversableOverridden = FOCUS_TRAVERSABLE_SET;

	firePropertyChange("focusable", oldFocusable, focusable);
	if (oldFocusable && !focusable) {
	if (isFocusOwner() && KeyboardFocusManager.isAutoFocusTransferEnabled()) {
	transferFocus(true);
	}
	KeyboardFocusManager.clearMostRecentFocusOwner(this);
	}
	}

	final boolean isFocusTraversableOverridden() {
	return (isFocusTraversableOverridden != FOCUS_TRAVERSABLE_DEFAULT);
	}

	/**
	* Sets the focus traversal keys for a given traversal operation for this
	* Component.
	* <p>
	* The default values for a Component's focus traversal keys are
	* implementation-dependent. Sun recommends that all implementations for a
	* particular native platform use the same default values. The
	* recommendations for Windows and Unix are listed below. These
	* recommendations are used in the Sun AWT implementations.
	*
	* <table border=1 summary="Recommended default values for a Component's focus traversal keys">
	* <tr>
	* <th>Identifier</th>
	* <th>Meaning</th>
	* <th>Default</th>
	* </tr>
	* <tr>
	* <td>KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS</td>
	* <td>Normal forward keyboard traversal</td>
	* <td>TAB on KEY_PRESSED, CTRL-TAB on KEY_PRESSED</td>
	* </tr>
	* <tr>
	* <td>KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS</td>
	* <td>Normal reverse keyboard traversal</td>
	* <td>SHIFT-TAB on KEY_PRESSED, CTRL-SHIFT-TAB on KEY_PRESSED</td>
	* </tr>
	* <tr>
	* <td>KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS</td>
	* <td>Go up one focus traversal cycle</td>
	* <td>none</td>
	* </tr>
	* </table>
	*
	* To disable a traversal key, use an empty Set; Collections.EMPTY_SET is
	* recommended.
	* <p>
	* Using the AWTKeyStroke API, client code can specify on which of two
	* specific KeyEvents, KEY_PRESSED or KEY_RELEASED, the focus traversal
	* operation will occur. Regardless of which KeyEvent is specified,
	* however, all KeyEvents related to the focus traversal key, including the
	* associated KEY_TYPED event, will be consumed, and will not be dispatched
	* to any Component. It is a runtime error to specify a KEY_TYPED event as
	* mapping to a focus traversal operation, or to map the same event to
	* multiple default focus traversal operations.
	* <p>
	* If a value of null is specified for the Set, this Component inherits the
	* Set from its parent. If all ancestors of this Component have null
	* specified for the Set, then the current KeyboardFocusManager's default
	* Set is used.
	* <p>
	* This method may throw a {@code ClassCastException} if any {@code Object}
	* in {@code keystrokes} is not an {@code AWTKeyStroke}.
	*
	* @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @param keystrokes the Set of AWTKeyStroke for the specified operation
	* @see #getFocusTraversalKeys
	* @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
	* @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
	* @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
	* @throws IllegalArgumentException if id is not one of
	* KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or if keystrokes
	* contains null, or if any keystroke represents a KEY_TYPED event,
	* or if any keystroke already maps to another focus traversal
	* operation for this Component
	* @since 1.4
	* @beaninfo
	* bound: true
	*/
	public void setFocusTraversalKeys(int id,
	Set<? extends AWTKeyStroke> keystrokes)
	{
	if (id < 0 \|\| id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH - 1) {
	throw new IllegalArgumentException("invalid focus traversal key identifier");
	}

	setFocusTraversalKeys_NoIDCheck(id, keystrokes);
	}

	/**
	* Returns the Set of focus traversal keys for a given traversal operation
	* for this Component. (See
	* <code>setFocusTraversalKeys</code> for a full description of each key.)
	* <p>
	* If a Set of traversal keys has not been explicitly defined for this
	* Component, then this Component's parent's Set is returned. If no Set
	* has been explicitly defined for any of this Component's ancestors, then
	* the current KeyboardFocusManager's default Set is returned.
	*
	* @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @return the Set of AWTKeyStrokes for the specified operation. The Set
	* will be unmodifiable, and may be empty. null will never be
	* returned.
	* @see #setFocusTraversalKeys
	* @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
	* @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
	* @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
	* @throws IllegalArgumentException if id is not one of
	* KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @since 1.4
	*/
	public Set<AWTKeyStroke> getFocusTraversalKeys(int id) {
	if (id < 0 \|\| id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH - 1) {
	throw new IllegalArgumentException("invalid focus traversal key identifier");
	}

	return getFocusTraversalKeys_NoIDCheck(id);
	}

	// We define these methods so that Container does not need to repeat this
	// code. Container cannot call super.<method> because Container allows
	// DOWN_CYCLE_TRAVERSAL_KEY while Component does not. The Component method
	// would erroneously generate an IllegalArgumentException for
	// DOWN_CYCLE_TRAVERSAL_KEY.
	final void setFocusTraversalKeys_NoIDCheck(int id, Set<? extends AWTKeyStroke> keystrokes) {
	Set<AWTKeyStroke> oldKeys;

	synchronized (this) {
	if (focusTraversalKeys == null) {
	initializeFocusTraversalKeys();
	}

	if (keystrokes != null) {
	for (AWTKeyStroke keystroke : keystrokes ) {

	if (keystroke == null) {
	throw new IllegalArgumentException("cannot set null focus traversal key");
	}

	if (keystroke.getKeyChar() != KeyEvent.CHAR_UNDEFINED) {
	throw new IllegalArgumentException("focus traversal keys cannot map to KEY_TYPED events");
	}

	for (int i = 0; i < focusTraversalKeys.length; i++) {
	if (i == id) {
	continue;
	}

	if (getFocusTraversalKeys_NoIDCheck(i).contains(keystroke))
	{
	throw new IllegalArgumentException("focus traversal keys must be unique for a Component");
	}
	}
	}
	}

	oldKeys = focusTraversalKeys[id];
	focusTraversalKeys[id] = (keystrokes != null)
	? Collections.unmodifiableSet(new HashSet<AWTKeyStroke>(keystrokes))
	: null;
	}

	firePropertyChange(focusTraversalKeyPropertyNames[id], oldKeys,
	keystrokes);
	}
	final Set<AWTKeyStroke> getFocusTraversalKeys_NoIDCheck(int id) {
	// Okay to return Set directly because it is an unmodifiable view
	@SuppressWarnings("unchecked")
	Set<AWTKeyStroke> keystrokes = (focusTraversalKeys != null)
	? focusTraversalKeys[id]
	: null;

	if (keystrokes != null) {
	return keystrokes;
	} else {
	Container parent = this.parent;
	if (parent != null) {
	return parent.getFocusTraversalKeys(id);
	} else {
	return KeyboardFocusManager.getCurrentKeyboardFocusManager().
	getDefaultFocusTraversalKeys(id);
	}
	}
	}

	/**
	* Returns whether the Set of focus traversal keys for the given focus
	* traversal operation has been explicitly defined for this Component. If
	* this method returns <code>false</code>, this Component is inheriting the
	* Set from an ancestor, or from the current KeyboardFocusManager.
	*
	* @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @return <code>true</code> if the the Set of focus traversal keys for the
	* given focus traversal operation has been explicitly defined for
	* this Component; <code>false</code> otherwise.
	* @throws IllegalArgumentException if id is not one of
	* KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @since 1.4
	*/
	public boolean areFocusTraversalKeysSet(int id) {
	if (id < 0 \|\| id >= KeyboardFocusManager.TRAVERSAL_KEY_LENGTH - 1) {
	throw new IllegalArgumentException("invalid focus traversal key identifier");
	}

	return (focusTraversalKeys != null && focusTraversalKeys[id] != null);
	}

	/**
	* Sets whether focus traversal keys are enabled for this Component.
	* Components for which focus traversal keys are disabled receive key
	* events for focus traversal keys. Components for which focus traversal
	* keys are enabled do not see these events; instead, the events are
	* automatically converted to traversal operations.
	*
	* @param focusTraversalKeysEnabled whether focus traversal keys are
	* enabled for this Component
	* @see #getFocusTraversalKeysEnabled
	* @see #setFocusTraversalKeys
	* @see #getFocusTraversalKeys
	* @since 1.4
	* @beaninfo
	* bound: true
	*/
	public void setFocusTraversalKeysEnabled(boolean
	focusTraversalKeysEnabled) {
	boolean oldFocusTraversalKeysEnabled;
	synchronized (this) {
	oldFocusTraversalKeysEnabled = this.focusTraversalKeysEnabled;
	this.focusTraversalKeysEnabled = focusTraversalKeysEnabled;
	}
	firePropertyChange("focusTraversalKeysEnabled",
	oldFocusTraversalKeysEnabled,
	focusTraversalKeysEnabled);
	}

	/**
	* Returns whether focus traversal keys are enabled for this Component.
	* Components for which focus traversal keys are disabled receive key
	* events for focus traversal keys. Components for which focus traversal
	* keys are enabled do not see these events; instead, the events are
	* automatically converted to traversal operations.
	*
	* @return whether focus traversal keys are enabled for this Component
	* @see #setFocusTraversalKeysEnabled
	* @see #setFocusTraversalKeys
	* @see #getFocusTraversalKeys
	* @since 1.4
	*/
	public boolean getFocusTraversalKeysEnabled() {
	return focusTraversalKeysEnabled;
	}

	/**
	* Requests that this Component get the input focus, and that this
	* Component's top-level ancestor become the focused Window. This
	* component must be displayable, focusable, visible and all of
	* its ancestors (with the exception of the top-level Window) must
	* be visible for the request to be granted. Every effort will be
	* made to honor the request; however, in some cases it may be
	* impossible to do so. Developers must never assume that this
	* Component is the focus owner until this Component receives a
	* FOCUS_GAINED event. If this request is denied because this
	* Component's top-level Window cannot become the focused Window,
	* the request will be remembered and will be granted when the
	* Window is later focused by the user.
	* <p>
	* This method cannot be used to set the focus owner to no Component at
	* all. Use <code>KeyboardFocusManager.clearGlobalFocusOwner()</code>
	* instead.
	* <p>
	* Because the focus behavior of this method is platform-dependent,
	* developers are strongly encouraged to use
	* <code>requestFocusInWindow</code> when possible.
	*
	* <p>Note: Not all focus transfers result from invoking this method. As
	* such, a component may receive focus without this or any of the other
	* {@code requestFocus} methods of {@code Component} being invoked.
	*
	* @see #requestFocusInWindow
	* @see java.awt.event.FocusEvent
	* @see #addFocusListener
	* @see #isFocusable
	* @see #isDisplayable
	* @see KeyboardFocusManager#clearGlobalFocusOwner
	* @since JDK1.0
	*/
	public void requestFocus() {
	requestFocusHelper(false, true);
	}

	boolean requestFocus(CausedFocusEvent.Cause cause) {
	return requestFocusHelper(false, true, cause);
	}

	/**
	* Requests that this <code>Component</code> get the input focus,
	* and that this <code>Component</code>'s top-level ancestor
	* become the focused <code>Window</code>. This component must be
	* displayable, focusable, visible and all of its ancestors (with
	* the exception of the top-level Window) must be visible for the
	* request to be granted. Every effort will be made to honor the
	* request; however, in some cases it may be impossible to do
	* so. Developers must never assume that this component is the
	* focus owner until this component receives a FOCUS_GAINED
	* event. If this request is denied because this component's
	* top-level window cannot become the focused window, the request
	* will be remembered and will be granted when the window is later
	* focused by the user.
	* <p>
	* This method returns a boolean value. If <code>false</code> is returned,
	* the request is <b>guaranteed to fail</b>. If <code>true</code> is
	* returned, the request will succeed <b>unless</b> it is vetoed, or an
	* extraordinary event, such as disposal of the component's peer, occurs
	* before the request can be granted by the native windowing system. Again,
	* while a return value of <code>true</code> indicates that the request is
	* likely to succeed, developers must never assume that this component is
	* the focus owner until this component receives a FOCUS_GAINED event.
	* <p>
	* This method cannot be used to set the focus owner to no component at
	* all. Use <code>KeyboardFocusManager.clearGlobalFocusOwner</code>
	* instead.
	* <p>
	* Because the focus behavior of this method is platform-dependent,
	* developers are strongly encouraged to use
	* <code>requestFocusInWindow</code> when possible.
	* <p>
	* Every effort will be made to ensure that <code>FocusEvent</code>s
	* generated as a
	* result of this request will have the specified temporary value. However,
	* because specifying an arbitrary temporary state may not be implementable
	* on all native windowing systems, correct behavior for this method can be
	* guaranteed only for lightweight <code>Component</code>s.
	* This method is not intended
	* for general use, but exists instead as a hook for lightweight component
	* libraries, such as Swing.
	*
	* <p>Note: Not all focus transfers result from invoking this method. As
	* such, a component may receive focus without this or any of the other
	* {@code requestFocus} methods of {@code Component} being invoked.
	*
	* @param temporary true if the focus change is temporary,
	* such as when the window loses the focus; for
	* more information on temporary focus changes see the
	*<a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see java.awt.event.FocusEvent
	* @see #addFocusListener
	* @see #isFocusable
	* @see #isDisplayable
	* @see KeyboardFocusManager#clearGlobalFocusOwner
	* @since 1.4
	*/
	protected boolean requestFocus(boolean temporary) {
	return requestFocusHelper(temporary, true);
	}

	boolean requestFocus(boolean temporary, CausedFocusEvent.Cause cause) {
	return requestFocusHelper(temporary, true, cause);
	}
	/**
	* Requests that this Component get the input focus, if this
	* Component's top-level ancestor is already the focused
	* Window. This component must be displayable, focusable, visible
	* and all of its ancestors (with the exception of the top-level
	* Window) must be visible for the request to be granted. Every
	* effort will be made to honor the request; however, in some
	* cases it may be impossible to do so. Developers must never
	* assume that this Component is the focus owner until this
	* Component receives a FOCUS_GAINED event.
	* <p>
	* This method returns a boolean value. If <code>false</code> is returned,
	* the request is <b>guaranteed to fail</b>. If <code>true</code> is
	* returned, the request will succeed <b>unless</b> it is vetoed, or an
	* extraordinary event, such as disposal of the Component's peer, occurs
	* before the request can be granted by the native windowing system. Again,
	* while a return value of <code>true</code> indicates that the request is
	* likely to succeed, developers must never assume that this Component is
	* the focus owner until this Component receives a FOCUS_GAINED event.
	* <p>
	* This method cannot be used to set the focus owner to no Component at
	* all. Use <code>KeyboardFocusManager.clearGlobalFocusOwner()</code>
	* instead.
	* <p>
	* The focus behavior of this method can be implemented uniformly across
	* platforms, and thus developers are strongly encouraged to use this
	* method over <code>requestFocus</code> when possible. Code which relies
	* on <code>requestFocus</code> may exhibit different focus behavior on
	* different platforms.
	*
	* <p>Note: Not all focus transfers result from invoking this method. As
	* such, a component may receive focus without this or any of the other
	* {@code requestFocus} methods of {@code Component} being invoked.
	*
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see #requestFocus
	* @see java.awt.event.FocusEvent
	* @see #addFocusListener
	* @see #isFocusable
	* @see #isDisplayable
	* @see KeyboardFocusManager#clearGlobalFocusOwner
	* @since 1.4
	*/
	public boolean requestFocusInWindow() {
	return requestFocusHelper(false, false);
	}

	boolean requestFocusInWindow(CausedFocusEvent.Cause cause) {
	return requestFocusHelper(false, false, cause);
	}

	/**
	* Requests that this <code>Component</code> get the input focus,
	* if this <code>Component</code>'s top-level ancestor is already
	* the focused <code>Window</code>. This component must be
	* displayable, focusable, visible and all of its ancestors (with
	* the exception of the top-level Window) must be visible for the
	* request to be granted. Every effort will be made to honor the
	* request; however, in some cases it may be impossible to do
	* so. Developers must never assume that this component is the
	* focus owner until this component receives a FOCUS_GAINED event.
	* <p>
	* This method returns a boolean value. If <code>false</code> is returned,
	* the request is <b>guaranteed to fail</b>. If <code>true</code> is
	* returned, the request will succeed <b>unless</b> it is vetoed, or an
	* extraordinary event, such as disposal of the component's peer, occurs
	* before the request can be granted by the native windowing system. Again,
	* while a return value of <code>true</code> indicates that the request is
	* likely to succeed, developers must never assume that this component is
	* the focus owner until this component receives a FOCUS_GAINED event.
	* <p>
	* This method cannot be used to set the focus owner to no component at
	* all. Use <code>KeyboardFocusManager.clearGlobalFocusOwner</code>
	* instead.
	* <p>
	* The focus behavior of this method can be implemented uniformly across
	* platforms, and thus developers are strongly encouraged to use this
	* method over <code>requestFocus</code> when possible. Code which relies
	* on <code>requestFocus</code> may exhibit different focus behavior on
	* different platforms.
	* <p>
	* Every effort will be made to ensure that <code>FocusEvent</code>s
	* generated as a
	* result of this request will have the specified temporary value. However,
	* because specifying an arbitrary temporary state may not be implementable
	* on all native windowing systems, correct behavior for this method can be
	* guaranteed only for lightweight components. This method is not intended
	* for general use, but exists instead as a hook for lightweight component
	* libraries, such as Swing.
	*
	* <p>Note: Not all focus transfers result from invoking this method. As
	* such, a component may receive focus without this or any of the other
	* {@code requestFocus} methods of {@code Component} being invoked.
	*
	* @param temporary true if the focus change is temporary,
	* such as when the window loses the focus; for
	* more information on temporary focus changes see the
	*<a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see #requestFocus
	* @see java.awt.event.FocusEvent
	* @see #addFocusListener
	* @see #isFocusable
	* @see #isDisplayable
	* @see KeyboardFocusManager#clearGlobalFocusOwner
	* @since 1.4
	*/
	protected boolean requestFocusInWindow(boolean temporary) {
	return requestFocusHelper(temporary, false);
	}

	boolean requestFocusInWindow(boolean temporary, CausedFocusEvent.Cause cause) {
	return requestFocusHelper(temporary, false, cause);
	}

	final boolean requestFocusHelper(boolean temporary,
	boolean focusedWindowChangeAllowed) {
	return requestFocusHelper(temporary, focusedWindowChangeAllowed, CausedFocusEvent.Cause.UNKNOWN);
	}

	final boolean requestFocusHelper(boolean temporary,
	boolean focusedWindowChangeAllowed,
	CausedFocusEvent.Cause cause)
	{
	// 1) Check if the event being dispatched is a system-generated mouse event.
	AWTEvent currentEvent = EventQueue.getCurrentEvent();
	if (currentEvent instanceof MouseEvent &&
	SunToolkit.isSystemGenerated(currentEvent))
	{
	// 2) Sanity check: if the mouse event component source belongs to the same containing window.
	Component source = ((MouseEvent)currentEvent).getComponent();
	if (source == null \|\| source.getContainingWindow() == getContainingWindow()) {
	focusLog.finest("requesting focus by mouse event \"in window\"");

	// If both the conditions are fulfilled the focus request should be strictly
	// bounded by the toplevel window. It's assumed that the mouse event activates
	// the window (if it wasn't active) and this makes it possible for a focus
	// request with a strong in-window requirement to change focus in the bounds
	// of the toplevel. If, by any means, due to asynchronous nature of the event
	// dispatching mechanism, the window happens to be natively inactive by the time
	// this focus request is eventually handled, it should not re-activate the
	// toplevel. Otherwise the result may not meet user expectations. See 6981400.
	focusedWindowChangeAllowed = false;
	}
	}
	if (!isRequestFocusAccepted(temporary, focusedWindowChangeAllowed, cause)) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("requestFocus is not accepted");
	}
	return false;
	}
	// Update most-recent map
	KeyboardFocusManager.setMostRecentFocusOwner(this);

	Component window = this;
	while ( (window != null) && !(window instanceof Window)) {
	if (!window.isVisible()) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("component is recurively invisible");
	}
	return false;
	}
	window = window.parent;
	}

	ComponentPeer peer = this.peer;
	Component heavyweight = (peer instanceof LightweightPeer)
	? getNativeContainer() : this;
	if (heavyweight == null \|\| !heavyweight.isVisible()) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Component is not a part of visible hierarchy");
	}
	return false;
	}
	peer = heavyweight.peer;
	if (peer == null) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Peer is null");
	}
	return false;
	}

	// Focus this Component
	long time = 0;
	if (EventQueue.isDispatchThread()) {
	time = Toolkit.getEventQueue().getMostRecentKeyEventTime();
	} else {
	// A focus request made from outside EDT should not be associated with any event
	// and so its time stamp is simply set to the current time.
	time = System.currentTimeMillis();
	}

	boolean success = peer.requestFocus
	(this, temporary, focusedWindowChangeAllowed, time, cause);
	if (!success) {
	KeyboardFocusManager.getCurrentKeyboardFocusManager
	(appContext).dequeueKeyEvents(time, this);
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Peer request failed");
	}
	} else {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Pass for " + this);
	}
	}
	return success;
	}

	private boolean isRequestFocusAccepted(boolean temporary,
	boolean focusedWindowChangeAllowed,
	CausedFocusEvent.Cause cause)
	{
	if (!isFocusable() \|\| !isVisible()) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Not focusable or not visible");
	}
	return false;
	}

	ComponentPeer peer = this.peer;
	if (peer == null) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("peer is null");
	}
	return false;
	}

	Window window = getContainingWindow();
	if (window == null \|\| !window.isFocusableWindow()) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("Component doesn't have toplevel");
	}
	return false;
	}

	// We have passed all regular checks for focus request,
	// now let's call RequestFocusController and see what it says.
	Component focusOwner = KeyboardFocusManager.getMostRecentFocusOwner(window);
	if (focusOwner == null) {
	// sometimes most recent focus owner may be null, but focus owner is not
	// e.g. we reset most recent focus owner if user removes focus owner
	focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
	if (focusOwner != null && focusOwner.getContainingWindow() != window) {
	focusOwner = null;
	}
	}

	if (focusOwner == this \|\| focusOwner == null) {
	// Controller is supposed to verify focus transfers and for this it
	// should know both from and to components. And it shouldn't verify
	// transfers from when these components are equal.
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("focus owner is null or this");
	}
	return true;
	}

	if (CausedFocusEvent.Cause.ACTIVATION == cause) {
	// we shouldn't call RequestFocusController in case we are
	// in activation. We do request focus on component which
	// has got temporary focus lost and then on component which is
	// most recent focus owner. But most recent focus owner can be
	// changed by requestFocsuXXX() call only, so this transfer has
	// been already approved.
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("cause is activation");
	}
	return true;
	}

	boolean ret = Component.requestFocusController.acceptRequestFocus(focusOwner,
	this,
	temporary,
	focusedWindowChangeAllowed,
	cause);
	if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
	focusLog.finest("RequestFocusController returns {0}", ret);
	}

	return ret;
	}

	private static RequestFocusController requestFocusController = new DummyRequestFocusController();

	// Swing access this method through reflection to implement InputVerifier's functionality.
	// Perhaps, we should make this method public (later ;)
	private static class DummyRequestFocusController implements RequestFocusController {
	public boolean acceptRequestFocus(Component from, Component to,
	boolean temporary, boolean focusedWindowChangeAllowed,
	CausedFocusEvent.Cause cause)
	{
	return true;
	}
	};

	synchronized static void setRequestFocusController(RequestFocusController requestController)
	{
	if (requestController == null) {
	requestFocusController = new DummyRequestFocusController();
	} else {
	requestFocusController = requestController;
	}
	}

	/**
	* Returns the Container which is the focus cycle root of this Component's
	* focus traversal cycle. Each focus traversal cycle has only a single
	* focus cycle root and each Component which is not a Container belongs to
	* only a single focus traversal cycle. Containers which are focus cycle
	* roots belong to two cycles: one rooted at the Container itself, and one
	* rooted at the Container's nearest focus-cycle-root ancestor. For such
	* Containers, this method will return the Container's nearest focus-cycle-
	* root ancestor.
	*
	* @return this Component's nearest focus-cycle-root ancestor
	* @see Container#isFocusCycleRoot()
	* @since 1.4
	*/
	public Container getFocusCycleRootAncestor() {
	Container rootAncestor = this.parent;
	while (rootAncestor != null && !rootAncestor.isFocusCycleRoot()) {
	rootAncestor = rootAncestor.parent;
	}
	return rootAncestor;
	}

	/**
	* Returns whether the specified Container is the focus cycle root of this
	* Component's focus traversal cycle. Each focus traversal cycle has only
	* a single focus cycle root and each Component which is not a Container
	* belongs to only a single focus traversal cycle.
	*
	* @param container the Container to be tested
	* @return <code>true</code> if the specified Container is a focus-cycle-
	* root of this Component; <code>false</code> otherwise
	* @see Container#isFocusCycleRoot()
	* @since 1.4
	*/
	public boolean isFocusCycleRoot(Container container) {
	Container rootAncestor = getFocusCycleRootAncestor();
	return (rootAncestor == container);
	}

	Container getTraversalRoot() {
	return getFocusCycleRootAncestor();
	}

	/**
	* Transfers the focus to the next component, as though this Component were
	* the focus owner.
	* @see #requestFocus()
	* @since JDK1.1
	*/
	public void transferFocus() {
	nextFocus();
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by transferFocus().
	*/
	@Deprecated
	public void nextFocus() {
	transferFocus(false);
	}

	boolean transferFocus(boolean clearOnFailure) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("clearOnFailure = " + clearOnFailure);
	}
	Component toFocus = getNextFocusCandidate();
	boolean res = false;
	if (toFocus != null && !toFocus.isFocusOwner() && toFocus != this) {
	res = toFocus.requestFocusInWindow(CausedFocusEvent.Cause.TRAVERSAL_FORWARD);
	}
	if (clearOnFailure && !res) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("clear global focus owner");
	}
	KeyboardFocusManager.getCurrentKeyboardFocusManager().clearGlobalFocusOwnerPriv();
	}
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("returning result: " + res);
	}
	return res;
	}

	final Component getNextFocusCandidate() {
	Container rootAncestor = getTraversalRoot();
	Component comp = this;
	while (rootAncestor != null &&
	!(rootAncestor.isShowing() && rootAncestor.canBeFocusOwner()))
	{
	comp = rootAncestor;
	rootAncestor = comp.getFocusCycleRootAncestor();
	}
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("comp = " + comp + ", root = " + rootAncestor);
	}
	Component candidate = null;
	if (rootAncestor != null) {
	FocusTraversalPolicy policy = rootAncestor.getFocusTraversalPolicy();
	Component toFocus = policy.getComponentAfter(rootAncestor, comp);
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("component after is " + toFocus);
	}
	if (toFocus == null) {
	toFocus = policy.getDefaultComponent(rootAncestor);
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("default component is " + toFocus);
	}
	}
	if (toFocus == null) {
	Applet applet = EmbeddedFrame.getAppletIfAncestorOf(this);
	if (applet != null) {
	toFocus = applet;
	}
	}
	candidate = toFocus;
	}
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("Focus transfer candidate: " + candidate);
	}
	return candidate;
	}

	/**
	* Transfers the focus to the previous component, as though this Component
	* were the focus owner.
	* @see #requestFocus()
	* @since 1.4
	*/
	public void transferFocusBackward() {
	transferFocusBackward(false);
	}

	boolean transferFocusBackward(boolean clearOnFailure) {
	Container rootAncestor = getTraversalRoot();
	Component comp = this;
	while (rootAncestor != null &&
	!(rootAncestor.isShowing() && rootAncestor.canBeFocusOwner()))
	{
	comp = rootAncestor;
	rootAncestor = comp.getFocusCycleRootAncestor();
	}
	boolean res = false;
	if (rootAncestor != null) {
	FocusTraversalPolicy policy = rootAncestor.getFocusTraversalPolicy();
	Component toFocus = policy.getComponentBefore(rootAncestor, comp);
	if (toFocus == null) {
	toFocus = policy.getDefaultComponent(rootAncestor);
	}
	if (toFocus != null) {
	res = toFocus.requestFocusInWindow(CausedFocusEvent.Cause.TRAVERSAL_BACKWARD);
	}
	}
	if (clearOnFailure && !res) {
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("clear global focus owner");
	}
	KeyboardFocusManager.getCurrentKeyboardFocusManager().clearGlobalFocusOwnerPriv();
	}
	if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
	focusLog.finer("returning result: " + res);
	}
	return res;
	}

	/**
	* Transfers the focus up one focus traversal cycle. Typically, the focus
	* owner is set to this Component's focus cycle root, and the current focus
	* cycle root is set to the new focus owner's focus cycle root. If,
	* however, this Component's focus cycle root is a Window, then the focus
	* owner is set to the focus cycle root's default Component to focus, and
	* the current focus cycle root is unchanged.
	*
	* @see #requestFocus()
	* @see Container#isFocusCycleRoot()
	* @see Container#setFocusCycleRoot(boolean)
	* @since 1.4
	*/
	public void transferFocusUpCycle() {
	Container rootAncestor;
	for (rootAncestor = getFocusCycleRootAncestor();
	rootAncestor != null && !(rootAncestor.isShowing() &&
	rootAncestor.isFocusable() &&
	rootAncestor.isEnabled());
	rootAncestor = rootAncestor.getFocusCycleRootAncestor()) {
	}

	if (rootAncestor != null) {
	Container rootAncestorRootAncestor =
	rootAncestor.getFocusCycleRootAncestor();
	Container fcr = (rootAncestorRootAncestor != null) ?
	rootAncestorRootAncestor : rootAncestor;

	KeyboardFocusManager.getCurrentKeyboardFocusManager().
	setGlobalCurrentFocusCycleRootPriv(fcr);
	rootAncestor.requestFocus(CausedFocusEvent.Cause.TRAVERSAL_UP);
	} else {
	Window window = getContainingWindow();

	if (window != null) {
	Component toFocus = window.getFocusTraversalPolicy().
	getDefaultComponent(window);
	if (toFocus != null) {
	KeyboardFocusManager.getCurrentKeyboardFocusManager().
	setGlobalCurrentFocusCycleRootPriv(window);
	toFocus.requestFocus(CausedFocusEvent.Cause.TRAVERSAL_UP);
	}
	}
	}
	}

	/**
	* Returns <code>true</code> if this <code>Component</code> is the
	* focus owner. This method is obsolete, and has been replaced by
	* <code>isFocusOwner()</code>.
	*
	* @return <code>true</code> if this <code>Component</code> is the
	* focus owner; <code>false</code> otherwise
	* @since 1.2
	*/
	public boolean hasFocus() {
	return (KeyboardFocusManager.getCurrentKeyboardFocusManager().
	getFocusOwner() == this);
	}

	/**
	* Returns <code>true</code> if this <code>Component</code> is the
	* focus owner.
	*
	* @return <code>true</code> if this <code>Component</code> is the
	* focus owner; <code>false</code> otherwise
	* @since 1.4
	*/
	public boolean isFocusOwner() {
	return hasFocus();
	}

	/*
	* Used to disallow auto-focus-transfer on disposal of the focus owner
	* in the process of disposing its parent container.
	*/
	private boolean autoFocusTransferOnDisposal = true;

	void setAutoFocusTransferOnDisposal(boolean value) {
	autoFocusTransferOnDisposal = value;
	}

	boolean isAutoFocusTransferOnDisposal() {
	return autoFocusTransferOnDisposal;
	}

	/**
	* Adds the specified popup menu to the component.
	* @param popup the popup menu to be added to the component.
	* @see #remove(MenuComponent)
	* @exception NullPointerException if {@code popup} is {@code null}
	* @since JDK1.1
	*/
	public void add(PopupMenu popup) {
	synchronized (getTreeLock()) {
	if (popup.parent != null) {
	popup.parent.remove(popup);
	}
	if (popups == null) {
	popups = new Vector<PopupMenu>();
	}
	popups.addElement(popup);
	popup.parent = this;

	if (peer != null) {
	if (popup.peer == null) {
	popup.addNotify();
	}
	}
	}
	}

	/**
	* Removes the specified popup menu from the component.
	* @param popup the popup menu to be removed
	* @see #add(PopupMenu)
	* @since JDK1.1
	*/
	@SuppressWarnings("unchecked")
	public void remove(MenuComponent popup) {
	synchronized (getTreeLock()) {
	if (popups == null) {
	return;
	}
	int index = popups.indexOf(popup);
	if (index >= 0) {
	PopupMenu pmenu = (PopupMenu)popup;
	if (pmenu.peer != null) {
	pmenu.removeNotify();
	}
	pmenu.parent = null;
	popups.removeElementAt(index);
	if (popups.size() == 0) {
	popups = null;
	}
	}
	}
	}

	/**
	* Returns a string representing the state of this component. This
	* method is intended to be used only for debugging purposes, and the
	* content and format of the returned string may vary between
	* implementations. The returned string may be empty but may not be
	* <code>null</code>.
	*
	* @return a string representation of this component's state
	* @since JDK1.0
	*/
	protected String paramString() {
	final String thisName = Objects.toString(getName(), "");
	final String invalid = isValid() ? "" : ",invalid";
	final String hidden = visible ? "" : ",hidden";
	final String disabled = enabled ? "" : ",disabled";
	return thisName + ',' + x + ',' + y + ',' + width + 'x' + height
	+ invalid + hidden + disabled;
	}

	/**
	* Returns a string representation of this component and its values.
	* @return a string representation of this component
	* @since JDK1.0
	*/
	public String toString() {
	return getClass().getName() + '[' + paramString() + ']';
	}

	/**
	* Prints a listing of this component to the standard system output
	* stream <code>System.out</code>.
	* @see java.lang.System#out
	* @since JDK1.0
	*/
	public void list() {
	list(System.out, 0);
	}

	/**
	* Prints a listing of this component to the specified output
	* stream.
	* @param out a print stream
	* @throws NullPointerException if {@code out} is {@code null}
	* @since JDK1.0
	*/
	public void list(PrintStream out) {
	list(out, 0);
	}

	/**
	* Prints out a list, starting at the specified indentation, to the
	* specified print stream.
	* @param out a print stream
	* @param indent number of spaces to indent
	* @see java.io.PrintStream#println(java.lang.Object)
	* @throws NullPointerException if {@code out} is {@code null}
	* @since JDK1.0
	*/
	public void list(PrintStream out, int indent) {
	for (int i = 0 ; i < indent ; i++) {
	out.print(" ");
	}
	out.println(this);
	}

	/**
	* Prints a listing to the specified print writer.
	* @param out the print writer to print to
	* @throws NullPointerException if {@code out} is {@code null}
	* @since JDK1.1
	*/
	public void list(PrintWriter out) {
	list(out, 0);
	}

	/**
	* Prints out a list, starting at the specified indentation, to
	* the specified print writer.
	* @param out the print writer to print to
	* @param indent the number of spaces to indent
	* @throws NullPointerException if {@code out} is {@code null}
	* @see java.io.PrintStream#println(java.lang.Object)
	* @since JDK1.1
	*/
	public void list(PrintWriter out, int indent) {
	for (int i = 0 ; i < indent ; i++) {
	out.print(" ");
	}
	out.println(this);
	}

	/*
	* Fetches the native container somewhere higher up in the component
	* tree that contains this component.
	*/
	final Container getNativeContainer() {
	Container p = getContainer();
	while (p != null && p.peer instanceof LightweightPeer) {
	p = p.getContainer();
	}
	return p;
	}

	/**
	* Adds a PropertyChangeListener to the listener list. The listener is
	* registered for all bound properties of this class, including the
	* following:
	* <ul>
	* <li>this Component's font ("font")</li>
	* <li>this Component's background color ("background")</li>
	* <li>this Component's foreground color ("foreground")</li>
	* <li>this Component's focusability ("focusable")</li>
	* <li>this Component's focus traversal keys enabled state
	* ("focusTraversalKeysEnabled")</li>
	* <li>this Component's Set of FORWARD_TRAVERSAL_KEYS
	* ("forwardFocusTraversalKeys")</li>
	* <li>this Component's Set of BACKWARD_TRAVERSAL_KEYS
	* ("backwardFocusTraversalKeys")</li>
	* <li>this Component's Set of UP_CYCLE_TRAVERSAL_KEYS
	* ("upCycleFocusTraversalKeys")</li>
	* <li>this Component's preferred size ("preferredSize")</li>
	* <li>this Component's minimum size ("minimumSize")</li>
	* <li>this Component's maximum size ("maximumSize")</li>
	* <li>this Component's name ("name")</li>
	* </ul>
	* Note that if this <code>Component</code> is inheriting a bound property, then no
	* event will be fired in response to a change in the inherited property.
	* <p>
	* If <code>listener</code> is <code>null</code>,
	* no exception is thrown and no action is performed.
	*
	* @param listener the property change listener to be added
	*
	* @see #removePropertyChangeListener
	* @see #getPropertyChangeListeners
	* @see #addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	*/
	public void addPropertyChangeListener(
	PropertyChangeListener listener) {
	synchronized (getObjectLock()) {
	if (listener == null) {
	return;
	}
	if (changeSupport == null) {
	changeSupport = new PropertyChangeSupport(this);
	}
	changeSupport.addPropertyChangeListener(listener);
	}
	}

	/**
	* Removes a PropertyChangeListener from the listener list. This method
	* should be used to remove PropertyChangeListeners that were registered
	* for all bound properties of this class.
	* <p>
	* If listener is null, no exception is thrown and no action is performed.
	*
	* @param listener the PropertyChangeListener to be removed
	*
	* @see #addPropertyChangeListener
	* @see #getPropertyChangeListeners
	* @see #removePropertyChangeListener(java.lang.String,java.beans.PropertyChangeListener)
	*/
	public void removePropertyChangeListener(
	PropertyChangeListener listener) {
	synchronized (getObjectLock()) {
	if (listener == null \|\| changeSupport == null) {
	return;
	}
	changeSupport.removePropertyChangeListener(listener);
	}
	}

	/**
	* Returns an array of all the property change listeners
	* registered on this component.
	*
	* @return all of this component's <code>PropertyChangeListener</code>s
	* or an empty array if no property change
	* listeners are currently registered
	*
	* @see #addPropertyChangeListener
	* @see #removePropertyChangeListener
	* @see #getPropertyChangeListeners(java.lang.String)
	* @see java.beans.PropertyChangeSupport#getPropertyChangeListeners
	* @since 1.4
	*/
	public PropertyChangeListener[] getPropertyChangeListeners() {
	synchronized (getObjectLock()) {
	if (changeSupport == null) {
	return new PropertyChangeListener[0];
	}
	return changeSupport.getPropertyChangeListeners();
	}
	}

	/**
	* Adds a PropertyChangeListener to the listener list for a specific
	* property. The specified property may be user-defined, or one of the
	* following:
	* <ul>
	* <li>this Component's font ("font")</li>
	* <li>this Component's background color ("background")</li>
	* <li>this Component's foreground color ("foreground")</li>
	* <li>this Component's focusability ("focusable")</li>
	* <li>this Component's focus traversal keys enabled state
	* ("focusTraversalKeysEnabled")</li>
	* <li>this Component's Set of FORWARD_TRAVERSAL_KEYS
	* ("forwardFocusTraversalKeys")</li>
	* <li>this Component's Set of BACKWARD_TRAVERSAL_KEYS
	* ("backwardFocusTraversalKeys")</li>
	* <li>this Component's Set of UP_CYCLE_TRAVERSAL_KEYS
	* ("upCycleFocusTraversalKeys")</li>
	* </ul>
	* Note that if this <code>Component</code> is inheriting a bound property, then no
	* event will be fired in response to a change in the inherited property.
	* <p>
	* If <code>propertyName</code> or <code>listener</code> is <code>null</code>,
	* no exception is thrown and no action is taken.
	*
	* @param propertyName one of the property names listed above
	* @param listener the property change listener to be added
	*
	* @see #removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	* @see #getPropertyChangeListeners(java.lang.String)
	* @see #addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	*/
	public void addPropertyChangeListener(
	String propertyName,
	PropertyChangeListener listener) {
	synchronized (getObjectLock()) {
	if (listener == null) {
	return;
	}
	if (changeSupport == null) {
	changeSupport = new PropertyChangeSupport(this);
	}
	changeSupport.addPropertyChangeListener(propertyName, listener);
	}
	}

	/**
	* Removes a <code>PropertyChangeListener</code> from the listener
	* list for a specific property. This method should be used to remove
	* <code>PropertyChangeListener</code>s
	* that were registered for a specific bound property.
	* <p>
	* If <code>propertyName</code> or <code>listener</code> is <code>null</code>,
	* no exception is thrown and no action is taken.
	*
	* @param propertyName a valid property name
	* @param listener the PropertyChangeListener to be removed
	*
	* @see #addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	* @see #getPropertyChangeListeners(java.lang.String)
	* @see #removePropertyChangeListener(java.beans.PropertyChangeListener)
	*/
	public void removePropertyChangeListener(
	String propertyName,
	PropertyChangeListener listener) {
	synchronized (getObjectLock()) {
	if (listener == null \|\| changeSupport == null) {
	return;
	}
	changeSupport.removePropertyChangeListener(propertyName, listener);
	}
	}

	/**
	* Returns an array of all the listeners which have been associated
	* with the named property.
	*
	* @return all of the <code>PropertyChangeListener</code>s associated with
	* the named property; if no such listeners have been added or
	* if <code>propertyName</code> is <code>null</code>, an empty
	* array is returned
	*
	* @see #addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	* @see #removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
	* @see #getPropertyChangeListeners
	* @since 1.4
	*/
	public PropertyChangeListener[] getPropertyChangeListeners(
	String propertyName) {
	synchronized (getObjectLock()) {
	if (changeSupport == null) {
	return new PropertyChangeListener[0];
	}
	return changeSupport.getPropertyChangeListeners(propertyName);
	}
	}

	/**
	* Support for reporting bound property changes for Object properties.
	* This method can be called when a bound property has changed and it will
	* send the appropriate PropertyChangeEvent to any registered
	* PropertyChangeListeners.
	*
	* @param propertyName the property whose value has changed
	* @param oldValue the property's previous value
	* @param newValue the property's new value
	*/
	protected void firePropertyChange(String propertyName,
	Object oldValue, Object newValue) {
	PropertyChangeSupport changeSupport;
	synchronized (getObjectLock()) {
	changeSupport = this.changeSupport;
	}
	if (changeSupport == null \|\|
	(oldValue != null && newValue != null && oldValue.equals(newValue))) {
	return;
	}
	changeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	/**
	* Support for reporting bound property changes for boolean properties.
	* This method can be called when a bound property has changed and it will
	* send the appropriate PropertyChangeEvent to any registered
	* PropertyChangeListeners.
	*
	* @param propertyName the property whose value has changed
	* @param oldValue the property's previous value
	* @param newValue the property's new value
	* @since 1.4
	*/
	protected void firePropertyChange(String propertyName,
	boolean oldValue, boolean newValue) {
	PropertyChangeSupport changeSupport = this.changeSupport;
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	changeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	/**
	* Support for reporting bound property changes for integer properties.
	* This method can be called when a bound property has changed and it will
	* send the appropriate PropertyChangeEvent to any registered
	* PropertyChangeListeners.
	*
	* @param propertyName the property whose value has changed
	* @param oldValue the property's previous value
	* @param newValue the property's new value
	* @since 1.4
	*/
	protected void firePropertyChange(String propertyName,
	int oldValue, int newValue) {
	PropertyChangeSupport changeSupport = this.changeSupport;
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	changeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a byte)
	* @param newValue the new value of the property (as a byte)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, byte oldValue, byte newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, Byte.valueOf(oldValue), Byte.valueOf(newValue));
	}

	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a char)
	* @param newValue the new value of the property (as a char)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, char oldValue, char newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, new Character(oldValue), new Character(newValue));
	}

	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a short)
	* @param newValue the old value of the property (as a short)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, short oldValue, short newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, Short.valueOf(oldValue), Short.valueOf(newValue));
	}


	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a long)
	* @param newValue the new value of the property (as a long)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, long oldValue, long newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, Long.valueOf(oldValue), Long.valueOf(newValue));
	}

	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a float)
	* @param newValue the new value of the property (as a float)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, float oldValue, float newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, Float.valueOf(oldValue), Float.valueOf(newValue));
	}

	/**
	* Reports a bound property change.
	*
	* @param propertyName the programmatic name of the property
	* that was changed
	* @param oldValue the old value of the property (as a double)
	* @param newValue the new value of the property (as a double)
	* @see #firePropertyChange(java.lang.String, java.lang.Object,
	* java.lang.Object)
	* @since 1.5
	*/
	public void firePropertyChange(String propertyName, double oldValue, double newValue) {
	if (changeSupport == null \|\| oldValue == newValue) {
	return;
	}
	firePropertyChange(propertyName, Double.valueOf(oldValue), Double.valueOf(newValue));
	}


	// Serialization support.

	/**
	* Component Serialized Data Version.
	*
	* @serial
	*/
	private int componentSerializedDataVersion = 4;

	/**
	* This hack is for Swing serialization. It will invoke
	* the Swing package private method <code>compWriteObjectNotify</code>.
	*/
	private void doSwingSerialization() {
	Package swingPackage = Package.getPackage("javax.swing");
	// For Swing serialization to correctly work Swing needs to
	// be notified before Component does it's serialization. This
	// hack accomodates this.
	//
	// Swing classes MUST be loaded by the bootstrap class loader,
	// otherwise we don't consider them.
	for (Class<?> klass = Component.this.getClass(); klass != null;
	klass = klass.getSuperclass()) {
	if (klass.getPackage() == swingPackage &&
	klass.getClassLoader() == null) {
	final Class<?> swingClass = klass;
	// Find the first override of the compWriteObjectNotify method
	Method[] methods = AccessController.doPrivileged(
	new PrivilegedAction<Method[]>() {
	public Method[] run() {
	return swingClass.getDeclaredMethods();
	}
	});
	for (int counter = methods.length - 1; counter >= 0;
	counter--) {
	final Method method = methods[counter];
	if (method.getName().equals("compWriteObjectNotify")){
	// We found it, use doPrivileged to make it accessible
	// to use.
	AccessController.doPrivileged(new PrivilegedAction<Void>() {
	public Void run() {
	method.setAccessible(true);
	return null;
	}
	});
	// Invoke the method
	try {
	method.invoke(this, (Object[]) null);
	} catch (IllegalAccessException iae) {
	} catch (InvocationTargetException ite) {
	}
	// We're done, bail.
	return;
	}
	}
	}
	}
	}

	/**
	* Writes default serializable fields to stream. Writes
	* a variety of serializable listeners as optional data.
	* The non-serializable listeners are detected and
	* no attempt is made to serialize them.
	*
	* @param s the <code>ObjectOutputStream</code> to write
	* @serialData <code>null</code> terminated sequence of
	* 0 or more pairs; the pair consists of a <code>String</code>
	* and an <code>Object</code>; the <code>String</code> indicates
	* the type of object and is one of the following (as of 1.4):
	* <code>componentListenerK</code> indicating an
	* <code>ComponentListener</code> object;
	* <code>focusListenerK</code> indicating an
	* <code>FocusListener</code> object;
	* <code>keyListenerK</code> indicating an
	* <code>KeyListener</code> object;
	* <code>mouseListenerK</code> indicating an
	* <code>MouseListener</code> object;
	* <code>mouseMotionListenerK</code> indicating an
	* <code>MouseMotionListener</code> object;
	* <code>inputMethodListenerK</code> indicating an
	* <code>InputMethodListener</code> object;
	* <code>hierarchyListenerK</code> indicating an
	* <code>HierarchyListener</code> object;
	* <code>hierarchyBoundsListenerK</code> indicating an
	* <code>HierarchyBoundsListener</code> object;
	* <code>mouseWheelListenerK</code> indicating an
	* <code>MouseWheelListener</code> object
	* @serialData an optional <code>ComponentOrientation</code>
	* (after <code>inputMethodListener</code>, as of 1.2)
	*
	* @see AWTEventMulticaster#save(java.io.ObjectOutputStream, java.lang.String, java.util.EventListener)
	* @see #componentListenerK
	* @see #focusListenerK
	* @see #keyListenerK
	* @see #mouseListenerK
	* @see #mouseMotionListenerK
	* @see #inputMethodListenerK
	* @see #hierarchyListenerK
	* @see #hierarchyBoundsListenerK
	* @see #mouseWheelListenerK
	* @see #readObject(ObjectInputStream)
	*/
	private void writeObject(ObjectOutputStream s)
	throws IOException
	{
	doSwingSerialization();

	s.defaultWriteObject();

	AWTEventMulticaster.save(s, componentListenerK, componentListener);
	AWTEventMulticaster.save(s, focusListenerK, focusListener);
	AWTEventMulticaster.save(s, keyListenerK, keyListener);
	AWTEventMulticaster.save(s, mouseListenerK, mouseListener);
	AWTEventMulticaster.save(s, mouseMotionListenerK, mouseMotionListener);
	AWTEventMulticaster.save(s, inputMethodListenerK, inputMethodListener);

	s.writeObject(null);
	s.writeObject(componentOrientation);

	AWTEventMulticaster.save(s, hierarchyListenerK, hierarchyListener);
	AWTEventMulticaster.save(s, hierarchyBoundsListenerK,
	hierarchyBoundsListener);
	s.writeObject(null);

	AWTEventMulticaster.save(s, mouseWheelListenerK, mouseWheelListener);
	s.writeObject(null);

	}

	/**
	* Reads the <code>ObjectInputStream</code> and if it isn't
	* <code>null</code> adds a listener to receive a variety
	* of events fired by the component.
	* Unrecognized keys or values will be ignored.
	*
	* @param s the <code>ObjectInputStream</code> to read
	* @see #writeObject(ObjectOutputStream)
	*/
	private void readObject(ObjectInputStream s)
	throws ClassNotFoundException, IOException
	{
	objectLock = new Object();

	acc = AccessController.getContext();

	s.defaultReadObject();

	appContext = AppContext.getAppContext();
	coalescingEnabled = checkCoalescing();
	if (componentSerializedDataVersion < 4) {
	// These fields are non-transient and rely on default
	// serialization. However, the default values are insufficient,
	// so we need to set them explicitly for object data streams prior
	// to 1.4.
	focusable = true;
	isFocusTraversableOverridden = FOCUS_TRAVERSABLE_UNKNOWN;
	initializeFocusTraversalKeys();
	focusTraversalKeysEnabled = true;
	}

	Object keyOrNull;
	while(null != (keyOrNull = s.readObject())) {
	String key = ((String)keyOrNull).intern();

	if (componentListenerK == key)
	addComponentListener((ComponentListener)(s.readObject()));

	else if (focusListenerK == key)
	addFocusListener((FocusListener)(s.readObject()));

	else if (keyListenerK == key)
	addKeyListener((KeyListener)(s.readObject()));

	else if (mouseListenerK == key)
	addMouseListener((MouseListener)(s.readObject()));

	else if (mouseMotionListenerK == key)
	addMouseMotionListener((MouseMotionListener)(s.readObject()));

	else if (inputMethodListenerK == key)
	addInputMethodListener((InputMethodListener)(s.readObject()));

	else // skip value for unrecognized key
	s.readObject();

	}

	// Read the component's orientation if it's present
	Object orient = null;

	try {
	orient = s.readObject();
	} catch (java.io.OptionalDataException e) {
	// JDK 1.1 instances will not have this optional data.
	// e.eof will be true to indicate that there is no more
	// data available for this object.
	// If e.eof is not true, throw the exception as it
	// might have been caused by reasons unrelated to
	// componentOrientation.

	if (!e.eof) {
	throw (e);
	}
	}

	if (orient != null) {
	componentOrientation = (ComponentOrientation)orient;
	} else {
	componentOrientation = ComponentOrientation.UNKNOWN;
	}

	try {
	while(null != (keyOrNull = s.readObject())) {
	String key = ((String)keyOrNull).intern();

	if (hierarchyListenerK == key) {
	addHierarchyListener((HierarchyListener)(s.readObject()));
	}
	else if (hierarchyBoundsListenerK == key) {
	addHierarchyBoundsListener((HierarchyBoundsListener)
	(s.readObject()));
	}
	else {
	// skip value for unrecognized key
	s.readObject();
	}
	}
	} catch (java.io.OptionalDataException e) {
	// JDK 1.1/1.2 instances will not have this optional data.
	// e.eof will be true to indicate that there is no more
	// data available for this object.
	// If e.eof is not true, throw the exception as it
	// might have been caused by reasons unrelated to
	// hierarchy and hierarchyBounds listeners.

	if (!e.eof) {
	throw (e);
	}
	}

	try {
	while (null != (keyOrNull = s.readObject())) {
	String key = ((String)keyOrNull).intern();

	if (mouseWheelListenerK == key) {
	addMouseWheelListener((MouseWheelListener)(s.readObject()));
	}
	else {
	// skip value for unrecognized key
	s.readObject();
	}
	}
	} catch (java.io.OptionalDataException e) {
	// pre-1.3 instances will not have this optional data.
	// e.eof will be true to indicate that there is no more
	// data available for this object.
	// If e.eof is not true, throw the exception as it
	// might have been caused by reasons unrelated to
	// mouse wheel listeners

	if (!e.eof) {
	throw (e);
	}
	}

	if (popups != null) {
	int npopups = popups.size();
	for (int i = 0 ; i < npopups ; i++) {
	PopupMenu popup = popups.elementAt(i);
	popup.parent = this;
	}
	}
	}

	/**
	* Sets the language-sensitive orientation that is to be used to order
	* the elements or text within this component. Language-sensitive
	* <code>LayoutManager</code> and <code>Component</code>
	* subclasses will use this property to
	* determine how to lay out and draw components.
	* <p>
	* At construction time, a component's orientation is set to
	* <code>ComponentOrientation.UNKNOWN</code>,
	* indicating that it has not been specified
	* explicitly. The UNKNOWN orientation behaves the same as
	* <code>ComponentOrientation.LEFT_TO_RIGHT</code>.
	* <p>
	* To set the orientation of a single component, use this method.
	* To set the orientation of an entire component
	* hierarchy, use
	* {@link #applyComponentOrientation applyComponentOrientation}.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	*
	* @see ComponentOrientation
	* @see #invalidate
	*
	* @author Laura Werner, IBM
	* @beaninfo
	* bound: true
	*/
	public void setComponentOrientation(ComponentOrientation o) {
	ComponentOrientation oldValue = componentOrientation;
	componentOrientation = o;

	// This is a bound property, so report the change to
	// any registered listeners. (Cheap if there are none.)
	firePropertyChange("componentOrientation", oldValue, o);

	// This could change the preferred size of the Component.
	invalidateIfValid();
	}

	/**
	* Retrieves the language-sensitive orientation that is to be used to order
	* the elements or text within this component. <code>LayoutManager</code>
	* and <code>Component</code>
	* subclasses that wish to respect orientation should call this method to
	* get the component's orientation before performing layout or drawing.
	*
	* @see ComponentOrientation
	*
	* @author Laura Werner, IBM
	*/
	public ComponentOrientation getComponentOrientation() {
	return componentOrientation;
	}

	/**
	* Sets the <code>ComponentOrientation</code> property of this component
	* and all components contained within it.
	* <p>
	* This method changes layout-related information, and therefore,
	* invalidates the component hierarchy.
	*
	*
	* @param orientation the new component orientation of this component and
	* the components contained within it.
	* @exception NullPointerException if <code>orientation</code> is null.
	* @see #setComponentOrientation
	* @see #getComponentOrientation
	* @see #invalidate
	* @since 1.4
	*/
	public void applyComponentOrientation(ComponentOrientation orientation) {
	if (orientation == null) {
	throw new NullPointerException();
	}
	setComponentOrientation(orientation);
	}

	final boolean canBeFocusOwner() {
	// It is enabled, visible, focusable.
	if (isEnabled() && isDisplayable() && isVisible() && isFocusable()) {
	return true;
	}
	return false;
	}

	/**
	* Checks that this component meets the prerequesites to be focus owner:
	* - it is enabled, visible, focusable
	* - it's parents are all enabled and showing
	* - top-level window is focusable
	* - if focus cycle root has DefaultFocusTraversalPolicy then it also checks that this policy accepts
	* this component as focus owner
	* @since 1.5
	*/
	final boolean canBeFocusOwnerRecursively() {
	// - it is enabled, visible, focusable
	if (!canBeFocusOwner()) {
	return false;
	}

	// - it's parents are all enabled and showing
	synchronized(getTreeLock()) {
	if (parent != null) {
	return parent.canContainFocusOwner(this);
	}
	}
	return true;
	}

	/**
	* Fix the location of the HW component in a LW container hierarchy.
	*/
	final void relocateComponent() {
	synchronized (getTreeLock()) {
	if (peer == null) {
	return;
	}
	int nativeX = x;
	int nativeY = y;
	for (Component cont = getContainer();
	cont != null && cont.isLightweight();
	cont = cont.getContainer())
	{
	nativeX += cont.x;
	nativeY += cont.y;
	}
	peer.setBounds(nativeX, nativeY, width, height,
	ComponentPeer.SET_LOCATION);
	}
	}

	/**
	* Returns the <code>Window</code> ancestor of the component.
	* @return Window ancestor of the component or component by itself if it is Window;
	* null, if component is not a part of window hierarchy
	*/
	Window getContainingWindow() {
	return SunToolkit.getContainingWindow(this);
	}

	/**
	* Initialize JNI field and method IDs
	*/
	private static native void initIDs();

	/*
	* --- Accessibility Support ---
	*
	* Component will contain all of the methods in interface Accessible,
	* though it won't actually implement the interface - that will be up
	* to the individual objects which extend Component.
	*/

	/**
	* The {@code AccessibleContext} associated with this {@code Component}.
	*/
	protected AccessibleContext accessibleContext = null;

	/**
	* Gets the <code>AccessibleContext</code> associated
	* with this <code>Component</code>.
	* The method implemented by this base
	* class returns null. Classes that extend <code>Component</code>
	* should implement this method to return the
	* <code>AccessibleContext</code> associated with the subclass.
	*
	*
	* @return the <code>AccessibleContext</code> of this
	* <code>Component</code>
	* @since 1.3
	*/
	public AccessibleContext getAccessibleContext() {
	return accessibleContext;
	}

	/**
	* Inner class of Component used to provide default support for
	* accessibility. This class is not meant to be used directly by
	* application developers, but is instead meant only to be
	* subclassed by component developers.
	* <p>
	* The class used to obtain the accessible role for this object.
	* @since 1.3
	*/
	protected abstract class AccessibleAWTComponent extends AccessibleContext
	implements Serializable, AccessibleComponent {

	private static final long serialVersionUID = 642321655757800191L;

	/**
	* Though the class is abstract, this should be called by
	* all sub-classes.
	*/
	protected AccessibleAWTComponent() {
	}

	/**
	* Number of PropertyChangeListener objects registered. It's used
	* to add/remove ComponentListener and FocusListener to track
	* target Component's state.
	*/
	private volatile transient int propertyListenersCount = 0;

	protected ComponentListener accessibleAWTComponentHandler = null;
	protected FocusListener accessibleAWTFocusHandler = null;

	/**
	* Fire PropertyChange listener, if one is registered,
	* when shown/hidden..
	* @since 1.3
	*/
	protected class AccessibleAWTComponentHandler implements ComponentListener {
	public void componentHidden(ComponentEvent e) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.VISIBLE, null);
	}
	}

	public void componentShown(ComponentEvent e) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.VISIBLE);
	}
	}

	public void componentMoved(ComponentEvent e) {
	}

	public void componentResized(ComponentEvent e) {
	}
	} // inner class AccessibleAWTComponentHandler


	/**
	* Fire PropertyChange listener, if one is registered,
	* when focus events happen
	* @since 1.3
	*/
	protected class AccessibleAWTFocusHandler implements FocusListener {
	public void focusGained(FocusEvent event) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.FOCUSED);
	}
	}
	public void focusLost(FocusEvent event) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.FOCUSED, null);
	}
	}
	} // inner class AccessibleAWTFocusHandler


	/**
	* Adds a <code>PropertyChangeListener</code> to the listener list.
	*
	* @param listener the property change listener to be added
	*/
	public void addPropertyChangeListener(PropertyChangeListener listener) {
	if (accessibleAWTComponentHandler == null) {
	accessibleAWTComponentHandler = new AccessibleAWTComponentHandler();
	}
	if (accessibleAWTFocusHandler == null) {
	accessibleAWTFocusHandler = new AccessibleAWTFocusHandler();
	}
	if (propertyListenersCount++ == 0) {
	Component.this.addComponentListener(accessibleAWTComponentHandler);
	Component.this.addFocusListener(accessibleAWTFocusHandler);
	}
	super.addPropertyChangeListener(listener);
	}

	/**
	* Remove a PropertyChangeListener from the listener list.
	* This removes a PropertyChangeListener that was registered
	* for all properties.
	*
	* @param listener The PropertyChangeListener to be removed
	*/
	public void removePropertyChangeListener(PropertyChangeListener listener) {
	if (--propertyListenersCount == 0) {
	Component.this.removeComponentListener(accessibleAWTComponentHandler);
	Component.this.removeFocusListener(accessibleAWTFocusHandler);
	}
	super.removePropertyChangeListener(listener);
	}

	// AccessibleContext methods
	//
	/**
	* Gets the accessible name of this object. This should almost never
	* return <code>java.awt.Component.getName()</code>,
	* as that generally isn't a localized name,
	* and doesn't have meaning for the user. If the
	* object is fundamentally a text object (e.g. a menu item), the
	* accessible name should be the text of the object (e.g. "save").
	* If the object has a tooltip, the tooltip text may also be an
	* appropriate String to return.
	*
	* @return the localized name of the object -- can be
	* <code>null</code> if this
	* object does not have a name
	* @see javax.accessibility.AccessibleContext#setAccessibleName
	*/
	public String getAccessibleName() {
	return accessibleName;
	}

	/**
	* Gets the accessible description of this object. This should be
	* a concise, localized description of what this object is - what
	* is its meaning to the user. If the object has a tooltip, the
	* tooltip text may be an appropriate string to return, assuming
	* it contains a concise description of the object (instead of just
	* the name of the object - e.g. a "Save" icon on a toolbar that
	* had "save" as the tooltip text shouldn't return the tooltip
	* text as the description, but something like "Saves the current
	* text document" instead).
	*
	* @return the localized description of the object -- can be
	* <code>null</code> if this object does not have a description
	* @see javax.accessibility.AccessibleContext#setAccessibleDescription
	*/
	public String getAccessibleDescription() {
	return accessibleDescription;
	}

	/**
	* Gets the role of this object.
	*
	* @return an instance of <code>AccessibleRole</code>
	* describing the role of the object
	* @see javax.accessibility.AccessibleRole
	*/
	public AccessibleRole getAccessibleRole() {
	return AccessibleRole.AWT_COMPONENT;
	}

	/**
	* Gets the state of this object.
	*
	* @return an instance of <code>AccessibleStateSet</code>
	* containing the current state set of the object
	* @see javax.accessibility.AccessibleState
	*/
	public AccessibleStateSet getAccessibleStateSet() {
	return Component.this.getAccessibleStateSet();
	}

	/**
	* Gets the <code>Accessible</code> parent of this object.
	* If the parent of this object implements <code>Accessible</code>,
	* this method should simply return <code>getParent</code>.
	*
	* @return the <code>Accessible</code> parent of this
	* object -- can be <code>null</code> if this
	* object does not have an <code>Accessible</code> parent
	*/
	public Accessible getAccessibleParent() {
	if (accessibleParent != null) {
	return accessibleParent;
	} else {
	Container parent = getParent();
	if (parent instanceof Accessible) {
	return (Accessible) parent;
	}
	}
	return null;
	}

	/**
	* Gets the index of this object in its accessible parent.
	*
	* @return the index of this object in its parent; or -1 if this
	* object does not have an accessible parent
	* @see #getAccessibleParent
	*/
	public int getAccessibleIndexInParent() {
	return Component.this.getAccessibleIndexInParent();
	}

	/**
	* Returns the number of accessible children in the object. If all
	* of the children of this object implement <code>Accessible</code>,
	* then this method should return the number of children of this object.
	*
	* @return the number of accessible children in the object
	*/
	public int getAccessibleChildrenCount() {
	return 0; // Components don't have children
	}

	/**
	* Returns the nth <code>Accessible</code> child of the object.
	*
	* @param i zero-based index of child
	* @return the nth <code>Accessible</code> child of the object
	*/
	public Accessible getAccessibleChild(int i) {
	return null; // Components don't have children
	}

	/**
	* Returns the locale of this object.
	*
	* @return the locale of this object
	*/
	public Locale getLocale() {
	return Component.this.getLocale();
	}

	/**
	* Gets the <code>AccessibleComponent</code> associated
	* with this object if one exists.
	* Otherwise return <code>null</code>.
	*
	* @return the component
	*/
	public AccessibleComponent getAccessibleComponent() {
	return this;
	}


	// AccessibleComponent methods
	//
	/**
	* Gets the background color of this object.
	*
	* @return the background color, if supported, of the object;
	* otherwise, <code>null</code>
	*/
	public Color getBackground() {
	return Component.this.getBackground();
	}

	/**
	* Sets the background color of this object.
	* (For transparency, see <code>isOpaque</code>.)
	*
	* @param c the new <code>Color</code> for the background
	* @see Component#isOpaque
	*/
	public void setBackground(Color c) {
	Component.this.setBackground(c);
	}

	/**
	* Gets the foreground color of this object.
	*
	* @return the foreground color, if supported, of the object;
	* otherwise, <code>null</code>
	*/
	public Color getForeground() {
	return Component.this.getForeground();
	}

	/**
	* Sets the foreground color of this object.
	*
	* @param c the new <code>Color</code> for the foreground
	*/
	public void setForeground(Color c) {
	Component.this.setForeground(c);
	}

	/**
	* Gets the <code>Cursor</code> of this object.
	*
	* @return the <code>Cursor</code>, if supported,
	* of the object; otherwise, <code>null</code>
	*/
	public Cursor getCursor() {
	return Component.this.getCursor();
	}

	/**
	* Sets the <code>Cursor</code> of this object.
	* <p>
	* The method may have no visual effect if the Java platform
	* implementation and/or the native system do not support
	* changing the mouse cursor shape.
	* @param cursor the new <code>Cursor</code> for the object
	*/
	public void setCursor(Cursor cursor) {
	Component.this.setCursor(cursor);
	}

	/**
	* Gets the <code>Font</code> of this object.
	*
	* @return the <code>Font</code>, if supported,
	* for the object; otherwise, <code>null</code>
	*/
	public Font getFont() {
	return Component.this.getFont();
	}

	/**
	* Sets the <code>Font</code> of this object.
	*
	* @param f the new <code>Font</code> for the object
	*/
	public void setFont(Font f) {
	Component.this.setFont(f);
	}

	/**
	* Gets the <code>FontMetrics</code> of this object.
	*
	* @param f the <code>Font</code>
	* @return the <code>FontMetrics</code>, if supported,
	* the object; otherwise, <code>null</code>
	* @see #getFont
	*/
	public FontMetrics getFontMetrics(Font f) {
	if (f == null) {
	return null;
	} else {
	return Component.this.getFontMetrics(f);
	}
	}

	/**
	* Determines if the object is enabled.
	*
	* @return true if object is enabled; otherwise, false
	*/
	public boolean isEnabled() {
	return Component.this.isEnabled();
	}

	/**
	* Sets the enabled state of the object.
	*
	* @param b if true, enables this object; otherwise, disables it
	*/
	public void setEnabled(boolean b) {
	boolean old = Component.this.isEnabled();
	Component.this.setEnabled(b);
	if (b != old) {
	if (accessibleContext != null) {
	if (b) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.ENABLED);
	} else {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.ENABLED, null);
	}
	}
	}
	}

	/**
	* Determines if the object is visible. Note: this means that the
	* object intends to be visible; however, it may not in fact be
	* showing on the screen because one of the objects that this object
	* is contained by is not visible. To determine if an object is
	* showing on the screen, use <code>isShowing</code>.
	*
	* @return true if object is visible; otherwise, false
	*/
	public boolean isVisible() {
	return Component.this.isVisible();
	}

	/**
	* Sets the visible state of the object.
	*
	* @param b if true, shows this object; otherwise, hides it
	*/
	public void setVisible(boolean b) {
	boolean old = Component.this.isVisible();
	Component.this.setVisible(b);
	if (b != old) {
	if (accessibleContext != null) {
	if (b) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.VISIBLE);
	} else {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.VISIBLE, null);
	}
	}
	}
	}

	/**
	* Determines if the object is showing. This is determined by checking
	* the visibility of the object and ancestors of the object. Note:
	* this will return true even if the object is obscured by another
	* (for example, it happens to be underneath a menu that was pulled
	* down).
	*
	* @return true if object is showing; otherwise, false
	*/
	public boolean isShowing() {
	return Component.this.isShowing();
	}

	/**
	* Checks whether the specified point is within this object's bounds,
	* where the point's x and y coordinates are defined to be relative to
	* the coordinate system of the object.
	*
	* @param p the <code>Point</code> relative to the
	* coordinate system of the object
	* @return true if object contains <code>Point</code>; otherwise false
	*/
	public boolean contains(Point p) {
	return Component.this.contains(p);
	}

	/**
	* Returns the location of the object on the screen.
	*
	* @return location of object on screen -- can be
	* <code>null</code> if this object is not on the screen
	*/
	public Point getLocationOnScreen() {
	synchronized (Component.this.getTreeLock()) {
	if (Component.this.isShowing()) {
	return Component.this.getLocationOnScreen();
	} else {
	return null;
	}
	}
	}

	/**
	* Gets the location of the object relative to the parent in the form
	* of a point specifying the object's top-left corner in the screen's
	* coordinate space.
	*
	* @return an instance of Point representing the top-left corner of
	* the object's bounds in the coordinate space of the screen;
	* <code>null</code> if this object or its parent are not on the screen
	*/
	public Point getLocation() {
	return Component.this.getLocation();
	}

	/**
	* Sets the location of the object relative to the parent.
	* @param p the coordinates of the object
	*/
	public void setLocation(Point p) {
	Component.this.setLocation(p);
	}

	/**
	* Gets the bounds of this object in the form of a Rectangle object.
	* The bounds specify this object's width, height, and location
	* relative to its parent.
	*
	* @return a rectangle indicating this component's bounds;
	* <code>null</code> if this object is not on the screen
	*/
	public Rectangle getBounds() {
	return Component.this.getBounds();
	}

	/**
	* Sets the bounds of this object in the form of a
	* <code>Rectangle</code> object.
	* The bounds specify this object's width, height, and location
	* relative to its parent.
	*
	* @param r a rectangle indicating this component's bounds
	*/
	public void setBounds(Rectangle r) {
	Component.this.setBounds(r);
	}

	/**
	* Returns the size of this object in the form of a
	* <code>Dimension</code> object. The height field of the
	* <code>Dimension</code> object contains this objects's
	* height, and the width field of the <code>Dimension</code>
	* object contains this object's width.
	*
	* @return a <code>Dimension</code> object that indicates
	* the size of this component; <code>null</code> if
	* this object is not on the screen
	*/
	public Dimension getSize() {
	return Component.this.getSize();
	}

	/**
	* Resizes this object so that it has width and height.
	*
	* @param d - the dimension specifying the new size of the object
	*/
	public void setSize(Dimension d) {
	Component.this.setSize(d);
	}

	/**
	* Returns the <code>Accessible</code> child,
	* if one exists, contained at the local
	* coordinate <code>Point</code>. Otherwise returns
	* <code>null</code>.
	*
	* @param p the point defining the top-left corner of
	* the <code>Accessible</code>, given in the
	* coordinate space of the object's parent
	* @return the <code>Accessible</code>, if it exists,
	* at the specified location; else <code>null</code>
	*/
	public Accessible getAccessibleAt(Point p) {
	return null; // Components don't have children
	}

	/**
	* Returns whether this object can accept focus or not.
	*
	* @return true if object can accept focus; otherwise false
	*/
	public boolean isFocusTraversable() {
	return Component.this.isFocusTraversable();
	}

	/**
	* Requests focus for this object.
	*/
	public void requestFocus() {
	Component.this.requestFocus();
	}

	/**
	* Adds the specified focus listener to receive focus events from this
	* component.
	*
	* @param l the focus listener
	*/
	public void addFocusListener(FocusListener l) {
	Component.this.addFocusListener(l);
	}

	/**
	* Removes the specified focus listener so it no longer receives focus
	* events from this component.
	*
	* @param l the focus listener
	*/
	public void removeFocusListener(FocusListener l) {
	Component.this.removeFocusListener(l);
	}

	} // inner class AccessibleAWTComponent


	/**
	* Gets the index of this object in its accessible parent.
	* If this object does not have an accessible parent, returns
	* -1.
	*
	* @return the index of this object in its accessible parent
	*/
	int getAccessibleIndexInParent() {
	synchronized (getTreeLock()) {
	int index = -1;
	Container parent = this.getParent();
	if (parent != null && parent instanceof Accessible) {
	Component ca[] = parent.getComponents();
	for (int i = 0; i < ca.length; i++) {
	if (ca[i] instanceof Accessible) {
	index++;
	}
	if (this.equals(ca[i])) {
	return index;
	}
	}
	}
	return -1;
	}
	}

	/**
	* Gets the current state set of this object.
	*
	* @return an instance of <code>AccessibleStateSet</code>
	* containing the current state set of the object
	* @see AccessibleState
	*/
	AccessibleStateSet getAccessibleStateSet() {
	synchronized (getTreeLock()) {
	AccessibleStateSet states = new AccessibleStateSet();
	if (this.isEnabled()) {
	states.add(AccessibleState.ENABLED);
	}
	if (this.isFocusTraversable()) {
	states.add(AccessibleState.FOCUSABLE);
	}
	if (this.isVisible()) {
	states.add(AccessibleState.VISIBLE);
	}
	if (this.isShowing()) {
	states.add(AccessibleState.SHOWING);
	}
	if (this.isFocusOwner()) {
	states.add(AccessibleState.FOCUSED);
	}
	if (this instanceof Accessible) {
	AccessibleContext ac = ((Accessible) this).getAccessibleContext();
	if (ac != null) {
	Accessible ap = ac.getAccessibleParent();
	if (ap != null) {
	AccessibleContext pac = ap.getAccessibleContext();
	if (pac != null) {
	AccessibleSelection as = pac.getAccessibleSelection();
	if (as != null) {
	states.add(AccessibleState.SELECTABLE);
	int i = ac.getAccessibleIndexInParent();
	if (i >= 0) {
	if (as.isAccessibleChildSelected(i)) {
	states.add(AccessibleState.SELECTED);
	}
	}
	}
	}
	}
	}
	}
	if (Component.isInstanceOf(this, "javax.swing.JComponent")) {
	if (((javax.swing.JComponent) this).isOpaque()) {
	states.add(AccessibleState.OPAQUE);
	}
	}
	return states;
	}
	}

	/**
	* Checks that the given object is instance of the given class.
	* @param obj Object to be checked
	* @param className The name of the class. Must be fully-qualified class name.
	* @return true, if this object is instanceof given class,
	* false, otherwise, or if obj or className is null
	*/
	static boolean isInstanceOf(Object obj, String className) {
	if (obj == null) return false;
	if (className == null) return false;

	Class<?> cls = obj.getClass();
	while (cls != null) {
	if (cls.getName().equals(className)) {
	return true;
	}
	cls = cls.getSuperclass();
	}
	return false;
	}


	// ************************ MIXING CODE *****************************

	/**
	* Check whether we can trust the current bounds of the component.
	* The return value of false indicates that the container of the
	* component is invalid, and therefore needs to be layed out, which would
	* probably mean changing the bounds of its children.
	* Null-layout of the container or absence of the container mean
	* the bounds of the component are final and can be trusted.
	*/
	final boolean areBoundsValid() {
	Container cont = getContainer();
	return cont == null \|\| cont.isValid() \|\| cont.getLayout() == null;
	}

	/**
	* Applies the shape to the component
	* @param shape Shape to be applied to the component
	*/
	void applyCompoundShape(Region shape) {
	checkTreeLock();

	if (!areBoundsValid()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; areBoundsValid = " + areBoundsValid());
	}
	return;
	}

	if (!isLightweight()) {
	ComponentPeer peer = getPeer();
	if (peer != null) {
	// The Region class has some optimizations. That's why
	// we should manually check whether it's empty and
	// substitute the object ourselves. Otherwise we end up
	// with some incorrect Region object with loX being
	// greater than the hiX for instance.
	if (shape.isEmpty()) {
	shape = Region.EMPTY_REGION;
	}


	// Note: the shape is not really copied/cloned. We create
	// the Region object ourselves, so there's no any possibility
	// to modify the object outside of the mixing code.
	// Nullifying compoundShape means that the component has normal shape
	// (or has no shape at all).
	if (shape.equals(getNormalShape())) {
	if (this.compoundShape == null) {
	return;
	}
	this.compoundShape = null;
	peer.applyShape(null);
	} else {
	if (shape.equals(getAppliedShape())) {
	return;
	}
	this.compoundShape = shape;
	Point compAbsolute = getLocationOnWindow();
	if (mixingLog.isLoggable(PlatformLogger.Level.FINER)) {
	mixingLog.fine("this = " + this +
	"; compAbsolute=" + compAbsolute + "; shape=" + shape);
	}
	peer.applyShape(shape.getTranslatedRegion(-compAbsolute.x, -compAbsolute.y));
	}
	}
	}
	}

	/**
	* Returns the shape previously set with applyCompoundShape().
	* If the component is LW or no shape was applied yet,
	* the method returns the normal shape.
	*/
	private Region getAppliedShape() {
	checkTreeLock();
	//XXX: if we allow LW components to have a shape, this must be changed
	return (this.compoundShape == null \|\| isLightweight()) ? getNormalShape() : this.compoundShape;
	}

	Point getLocationOnWindow() {
	checkTreeLock();
	Point curLocation = getLocation();

	for (Container parent = getContainer();
	parent != null && !(parent instanceof Window);
	parent = parent.getContainer())
	{
	curLocation.x += parent.getX();
	curLocation.y += parent.getY();
	}

	return curLocation;
	}

	/**
	* Returns the full shape of the component located in window coordinates
	*/
	final Region getNormalShape() {
	checkTreeLock();
	//XXX: we may take into account a user-specified shape for this component
	Point compAbsolute = getLocationOnWindow();
	return
	Region.getInstanceXYWH(
	compAbsolute.x,
	compAbsolute.y,
	getWidth(),
	getHeight()
	);
	}

	/**
	* Returns the "opaque shape" of the component.
	*
	* The opaque shape of a lightweight components is the actual shape that
	* needs to be cut off of the heavyweight components in order to mix this
	* lightweight component correctly with them.
	*
	* The method is overriden in the java.awt.Container to handle non-opaque
	* containers containing opaque children.
	*
	* See 6637655 for details.
	*/
	Region getOpaqueShape() {
	checkTreeLock();
	if (mixingCutoutRegion != null) {
	return mixingCutoutRegion;
	} else {
	return getNormalShape();
	}
	}

	final int getSiblingIndexAbove() {
	checkTreeLock();
	Container parent = getContainer();
	if (parent == null) {
	return -1;
	}

	int nextAbove = parent.getComponentZOrder(this) - 1;

	return nextAbove < 0 ? -1 : nextAbove;
	}

	final ComponentPeer getHWPeerAboveMe() {
	checkTreeLock();

	Container cont = getContainer();
	int indexAbove = getSiblingIndexAbove();

	while (cont != null) {
	for (int i = indexAbove; i > -1; i--) {
	Component comp = cont.getComponent(i);
	if (comp != null && comp.isDisplayable() && !comp.isLightweight()) {
	return comp.getPeer();
	}
	}
	// traversing the hierarchy up to the closest HW container;
	// further traversing may return a component that is not actually
	// a native sibling of this component and this kind of z-order
	// request may not be allowed by the underlying system (6852051).
	if (!cont.isLightweight()) {
	break;
	}

	indexAbove = cont.getSiblingIndexAbove();
	cont = cont.getContainer();
	}

	return null;
	}

	final int getSiblingIndexBelow() {
	checkTreeLock();
	Container parent = getContainer();
	if (parent == null) {
	return -1;
	}

	int nextBelow = parent.getComponentZOrder(this) + 1;

	return nextBelow >= parent.getComponentCount() ? -1 : nextBelow;
	}

	final boolean isNonOpaqueForMixing() {
	return mixingCutoutRegion != null &&
	mixingCutoutRegion.isEmpty();
	}

	private Region calculateCurrentShape() {
	checkTreeLock();
	Region s = getNormalShape();

	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; normalShape=" + s);
	}

	if (getContainer() != null) {
	Component comp = this;
	Container cont = comp.getContainer();

	while (cont != null) {
	for (int index = comp.getSiblingIndexAbove(); index != -1; --index) {
	/* It is assumed that:
	*
	* getComponent(getContainer().getComponentZOrder(comp)) == comp
	*
	* The assumption has been made according to the current
	* implementation of the Container class.
	*/
	Component c = cont.getComponent(index);
	if (c.isLightweight() && c.isShowing()) {
	s = s.getDifference(c.getOpaqueShape());
	}
	}

	if (cont.isLightweight()) {
	s = s.getIntersection(cont.getNormalShape());
	} else {
	break;
	}

	comp = cont;
	cont = cont.getContainer();
	}
	}

	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("currentShape=" + s);
	}

	return s;
	}

	void applyCurrentShape() {
	checkTreeLock();
	if (!areBoundsValid()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; areBoundsValid = " + areBoundsValid());
	}
	return; // Because applyCompoundShape() ignores such components anyway
	}
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this);
	}
	applyCompoundShape(calculateCurrentShape());
	}

	final void subtractAndApplyShape(Region s) {
	checkTreeLock();

	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; s=" + s);
	}

	applyCompoundShape(getAppliedShape().getDifference(s));
	}

	private final void applyCurrentShapeBelowMe() {
	checkTreeLock();
	Container parent = getContainer();
	if (parent != null && parent.isShowing()) {
	// First, reapply shapes of my siblings
	parent.recursiveApplyCurrentShape(getSiblingIndexBelow());

	// Second, if my container is non-opaque, reapply shapes of siblings of my container
	Container parent2 = parent.getContainer();
	while (!parent.isOpaque() && parent2 != null) {
	parent2.recursiveApplyCurrentShape(parent.getSiblingIndexBelow());

	parent = parent2;
	parent2 = parent.getContainer();
	}
	}
	}

	final void subtractAndApplyShapeBelowMe() {
	checkTreeLock();
	Container parent = getContainer();
	if (parent != null && isShowing()) {
	Region opaqueShape = getOpaqueShape();

	// First, cut my siblings
	parent.recursiveSubtractAndApplyShape(opaqueShape, getSiblingIndexBelow());

	// Second, if my container is non-opaque, cut siblings of my container
	Container parent2 = parent.getContainer();
	while (!parent.isOpaque() && parent2 != null) {
	parent2.recursiveSubtractAndApplyShape(opaqueShape, parent.getSiblingIndexBelow());

	parent = parent2;
	parent2 = parent.getContainer();
	}
	}
	}

	void mixOnShowing() {
	synchronized (getTreeLock()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this);
	}
	if (!isMixingNeeded()) {
	return;
	}
	if (isLightweight()) {
	subtractAndApplyShapeBelowMe();
	} else {
	applyCurrentShape();
	}
	}
	}

	void mixOnHiding(boolean isLightweight) {
	// We cannot be sure that the peer exists at this point, so we need the argument
	// to find out whether the hiding component is (well, actually was) a LW or a HW.
	synchronized (getTreeLock()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; isLightweight = " + isLightweight);
	}
	if (!isMixingNeeded()) {
	return;
	}
	if (isLightweight) {
	applyCurrentShapeBelowMe();
	}
	}
	}

	void mixOnReshaping() {
	synchronized (getTreeLock()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this);
	}
	if (!isMixingNeeded()) {
	return;
	}
	if (isLightweight()) {
	applyCurrentShapeBelowMe();
	} else {
	applyCurrentShape();
	}
	}
	}

	void mixOnZOrderChanging(int oldZorder, int newZorder) {
	synchronized (getTreeLock()) {
	boolean becameHigher = newZorder < oldZorder;
	Container parent = getContainer();

	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this +
	"; oldZorder=" + oldZorder + "; newZorder=" + newZorder + "; parent=" + parent);
	}
	if (!isMixingNeeded()) {
	return;
	}
	if (isLightweight()) {
	if (becameHigher) {
	if (parent != null && isShowing()) {
	parent.recursiveSubtractAndApplyShape(getOpaqueShape(), getSiblingIndexBelow(), oldZorder);
	}
	} else {
	if (parent != null) {
	parent.recursiveApplyCurrentShape(oldZorder, newZorder);
	}
	}
	} else {
	if (becameHigher) {
	applyCurrentShape();
	} else {
	if (parent != null) {
	Region shape = getAppliedShape();

	for (int index = oldZorder; index < newZorder; index++) {
	Component c = parent.getComponent(index);
	if (c.isLightweight() && c.isShowing()) {
	shape = shape.getDifference(c.getOpaqueShape());
	}
	}
	applyCompoundShape(shape);
	}
	}
	}
	}
	}

	void mixOnValidating() {
	// This method gets overriden in the Container. Obviously, a plain
	// non-container components don't need to handle validation.
	}

	final boolean isMixingNeeded() {
	if (SunToolkit.getSunAwtDisableMixing()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINEST)) {
	mixingLog.finest("this = " + this + "; Mixing disabled via sun.awt.disableMixing");
	}
	return false;
	}
	if (!areBoundsValid()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; areBoundsValid = " + areBoundsValid());
	}
	return false;
	}
	Window window = getContainingWindow();
	if (window != null) {
	if (!window.hasHeavyweightDescendants() \|\| !window.hasLightweightDescendants() \|\| window.isDisposing()) {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("containing window = " + window +
	"; has h/w descendants = " + window.hasHeavyweightDescendants() +
	"; has l/w descendants = " + window.hasLightweightDescendants() +
	"; disposing = " + window.isDisposing());
	}
	return false;
	}
	} else {
	if (mixingLog.isLoggable(PlatformLogger.Level.FINE)) {
	mixingLog.fine("this = " + this + "; containing window is null");
	}
	return false;
	}
	return true;
	}

	// **************** END OF MIXING CODE ******************************

	// Note that the method is overriden in the Window class,
	// a window doesn't need to be updated in the Z-order.
	void updateZOrder() {
	peer.setZOrder(getHWPeerAboveMe());
	}

	}

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