/*
 * Copyright 1997-2003 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package java.security;

/**
 * <p> This exception is thrown by the AccessController to indicate
 * that a requested access (to a critical system resource such as the
 * file system or the network) is denied.
 *
 * <p> The reason to deny access can vary.  For example, the requested
 * permission might be of an incorrect type,  contain an invalid
 * value, or request access that is not allowed according to the
 * security policy.  Such information should be given whenever
 * possible at the time the exception is thrown.
 *
 * @author Li Gong
 * @author Roland Schemers
 */

public class AccessControlException extends SecurityException {

    private static final long serialVersionUID = 5138225684096988535L;

    // the permission that caused the exeception to be thrown.
    private Permission perm;

    /**
     * Constructs an <code>AccessControlException</code> with the
     * specified, detailed message.
     *
     * @param   s   the detail message.
     */
    public AccessControlException(String s) {
        super(s);
    }

    /**
     * Constructs an <code>AccessControlException</code> with the
     * specified, detailed message, and the requested permission that caused
     * the exception.
     *
     * @param   s   the detail message.
     * @param   p   the permission that caused the exception.
     */
    public AccessControlException(String s, Permission p) {
        super(s);
        perm = p;
    }

    /**
     * Gets the Permission object associated with this exeception, or
     * null if there was no corresponding Permission object.
     *
     * @return the Permission object.
     */
    public Permission getPermission() {
        return perm;
    }
}