Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.hadoop.security.authorize; import java.io.PrintStream; import java.io.PrintWriter; import org.apache.hadoop.classification.InterfaceAudience; import org.apache.hadoop.classification.InterfaceStability; import org.apache.hadoop.security.AccessControlException; /** * An exception class for authorization-related issues. * * This class <em>does not</em> provide the stack trace for security purposes. */ @InterfaceAudience.Public @InterfaceStability.Evolving public class AuthorizationException extends AccessControlException { private static final long serialVersionUID = 1L; public AuthorizationException() { super(); } public AuthorizationException(String message) { super(message); } /** * Constructs a new exception with the specified cause and a detail * message of <tt>(cause==null ? null : cause.toString())</tt> (which * typically contains the class and detail message of <tt>cause</tt>). * @param cause the cause (which is saved for later retrieval by the * {@link #getCause()} method). (A <tt>null</tt> value is * permitted, and indicates that the cause is nonexistent or * unknown.) */ public AuthorizationException(Throwable cause) { super(cause); } private static StackTraceElement[] stackTrace = new StackTraceElement[0]; @Override public StackTraceElement[] getStackTrace() { // Do not provide the stack-trace return stackTrace; } @Override public void printStackTrace() { printStackTrace(System.err); } @Override public void printStackTrace(PrintStream s) { // Do not provide the stack-trace s.println(this); } @Override public void printStackTrace(PrintWriter s) { // Do not provide the stack-trace s.println(this); } }