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package java.security;
/**
* A computation to be performed with privileges enabled. The computation is
* performed by invoking {@code AccessController.doPrivileged} on the
* {@code PrivilegedAction} object. This interface is used only for
* computations that do not throw checked exceptions; computations that
* throw checked exceptions must use {@code PrivilegedExceptionAction}
* instead.
* @since 1.2
* @see AccessController
* @see AccessController#doPrivileged(PrivilegedAction)
* @see PrivilegedExceptionAction
@FunctionalInterface
public interface PrivilegedAction<T> {
* Performs the computation. This method will be called by
* {@code AccessController.doPrivileged} after enabling privileges.
* @return a class-dependent value that may represent the results of the
* computation. Each class that implements
* {@code PrivilegedAction}
* should document what (if anything) this value represents.
* @see AccessController#doPrivileged(PrivilegedAction,
* AccessControlContext)
T run();
}