001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.security;
019
020import org.apache.hadoop.classification.InterfaceAudience;
021import org.apache.hadoop.classification.InterfaceStability;
022
023/**
024 * An exception class for access control related issues.
025 */
026@InterfaceAudience.Public
027@InterfaceStability.Evolving
028public class AccessControlException 
029    extends org.apache.hadoop.fs.permission.AccessControlException {
030
031  //Required by {@link java.io.Serializable}.
032  private static final long serialVersionUID = 1L;
033
034  /**
035   * Default constructor is needed for unwrapping from 
036   * {@link org.apache.hadoop.ipc.RemoteException}.
037   */
038  public AccessControlException() {
039    super("Permission denied.");
040  }
041
042  /**
043   * Constructs an {@link AccessControlException}
044   * with the specified detail message.
045   * @param s the detail message.
046   */
047  public AccessControlException(String s) {super(s);}
048  
049  /**
050   * Constructs a new exception with the specified cause and a detail
051   * message of <tt>(cause==null ? null : cause.toString())</tt> (which
052   * typically contains the class and detail message of <tt>cause</tt>).
053   * @param  cause the cause (which is saved for later retrieval by the
054   *         {@link #getCause()} method).  (A <tt>null</tt> value is
055   *         permitted, and indicates that the cause is nonexistent or
056   *         unknown.)
057   */
058  public AccessControlException(Throwable cause) {
059    super(cause);
060  }
061}