001/* AccessControlException.java -- Permission is denied
002   Copyright (C) 1998, 2002, 2005  Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038package java.security;
039
040/**
041 * This exception is thrown when the <code>AccessController</code> denies
042 * an attempt to perform an operation. This often keeps track of the
043 * permission that was not granted.
044 *
045 * @author Aaron M. Renn (arenn@urbanophile.com)
046 * @see AccessController
047 * @status updated to 1.4
048 */
049public class AccessControlException extends SecurityException
050{
051  /**
052   * Compatible with JDK 1.1+.
053   */
054  private static final long serialVersionUID = 5138225684096988535L;
055
056  /**
057   * The <code>Permission</code> associated with this exception.
058   *
059   * @serial the permission
060   */
061  private final Permission perm;
062
063  /**
064   * Create a new instance with a descriptive error message, and a null
065   * <code>Permission</code> object.
066   *
067   * @param msg the descriptive error message
068   */
069  public AccessControlException(String msg)
070  {
071    this(msg, null);
072  }
073
074  /**
075   * Create a new instance with a descriptive error message and an associated
076   * <code>Permission</code> object.
077   *
078   * @param msg the descriptive error message
079   * @param perm the permission that caused this
080   */
081  public AccessControlException(String msg, Permission perm)
082  {
083    super(msg);
084    this.perm = perm;
085  }
086
087  /**
088   * This method returns the <code>Permission</code> object that caused
089   * this exception to be thrown.
090   *
091   * @return the denied permission, or null
092   */
093  public Permission getPermission()
094  {
095    return perm;
096  }
097}