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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 *
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package java.security;


/**
 * A computation to be performed that throws one or more checked exceptions.
 * The computation is performed by invoking
 * {@code AccessController.doPrivileged} on the
 * {@code PrivilegedExceptionAction} object.  This interface is
 * used only for computations that throw checked exceptions;
 * computations that do not throw
 * checked exceptions should use {@code PrivilegedAction} instead.
 * @param <T> the type of the result of running the computation
 *
 * @since 1.2
 * @see AccessController
 * @see AccessController#doPrivileged(PrivilegedExceptionAction)
 * @see AccessController#doPrivileged(PrivilegedExceptionAction,
 *                                              AccessControlContext)
 * @see PrivilegedAction
 */
@FunctionalInterface
public interface PrivilegedExceptionAction<T> {
    /**
     * Performs the computation.  This method will be called by
     * {@code AccessController.doPrivileged}.
     *
     * @return a class-dependent value that may represent the results of the
     *         computation.  Each class that implements
     *         {@code PrivilegedExceptionAction} should document what
     *         (if anything) this value represents.
     * @throws Exception an exceptional condition has occurred.  Each class
     *         that implements {@code PrivilegedExceptionAction} should
     *         document the exceptions that its run method can throw.
     * @see AccessController#doPrivileged(PrivilegedExceptionAction)
     * @see AccessController#doPrivileged(PrivilegedExceptionAction,AccessControlContext)
     */

    T run() throws Exception;
}