/*

 * Copyright (c) 2008, 2009, 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 sun.nio.fs;

import java.lang.reflect.*;

import java.security.AccessController;

import java.security.PrivilegedAction;

/**

 * Utility class for reflection.

 */

class Reflect {

    private Reflect() {}

    private static void setAccessible(final AccessibleObject ao) {

        AccessController.doPrivileged(new PrivilegedAction<Object>() {

                @Override

                public Object run() {

                    ao.setAccessible(true);

                    return null;

                }});

    }

    /**

     * Lookup the field of a given class.

     */

    static Field lookupField(String className, String fieldName) {

        try {

            Class<?> cl = Class.forName(className);

            Field f = cl.getDeclaredField(fieldName);

            setAccessible(f);

            return f;

        } catch (ClassNotFoundException x) {

            throw new AssertionError(x);

        } catch (NoSuchFieldException x) {

            throw new AssertionError(x);

        }

    }

}