001 /* $Id: PluginConfigurationException.java 729089 2008-12-23 20:22:26Z rahul $ 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one or more 004 * contributor license agreements. See the NOTICE file distributed with 005 * this work for additional information regarding copyright ownership. 006 * The ASF licenses this file to You under the Apache License, Version 2.0 007 * (the "License"); you may not use this file except in compliance with 008 * 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 */ 018 019 package org.apache.commons.digester.plugins; 020 021 /** 022 * Thrown when an error occurs due to the way the calling application uses 023 * the plugins module. Because the pre-existing Digester API doesn't provide 024 * any option for throwing checked exceptions at some points where Plugins 025 * can potentially fail, this exception extends RuntimeException so that it 026 * can "tunnel" through these points. 027 * 028 * @since 1.6 029 */ 030 031 public class PluginConfigurationException extends RuntimeException { 032 033 private static final long serialVersionUID = 1L; 034 private Throwable cause = null; 035 036 /** 037 * @param cause underlying exception that caused this to be thrown 038 */ 039 public PluginConfigurationException(Throwable cause) { 040 this(cause.getMessage()); 041 this.cause = cause; 042 } 043 044 /** 045 * @param msg describes the reason this exception is being thrown. 046 */ 047 public PluginConfigurationException(String msg) { 048 super(msg); 049 } 050 051 /** 052 * @param msg describes the reason this exception is being thrown. 053 * @param cause underlying exception that caused this to be thrown 054 */ 055 public PluginConfigurationException(String msg, Throwable cause) { 056 this(msg); 057 this.cause = cause; 058 } 059 060 /** 061 * Return the cause of this exception (if any) as specified in the 062 * exception constructor. 063 * 064 * @since 1.8 065 */ 066 public Throwable getCause() { 067 return cause; 068 } 069 }