001    /* $Id: XmlLoadException.java 729094 2008-12-23 20:30:47Z 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    
020    package org.apache.commons.digester.xmlrules;
021    
022    
023    /**
024     * Thrown when an error occurs while parsing XML into Digester rules.
025     *
026     * @since 1.2
027     */
028    public class XmlLoadException extends RuntimeException {
029    
030        private static final long serialVersionUID = 1L;
031        private Throwable cause = null;
032    
033        /**
034         * @param cause underlying exception that caused this to be thrown
035         */
036        public XmlLoadException(Throwable cause) {
037            this(cause.getMessage());
038            this.cause = cause;
039        }
040    
041        public XmlLoadException(String msg) {
042            super(msg);
043        }
044    
045        public XmlLoadException(String msg, Throwable cause) {
046            this(msg);
047            this.cause = cause;
048        }
049        
050        /** 
051         * Returns the cause of this throwable or null if the cause is 
052         * nonexistent or unknown. 
053         */
054        public Throwable getCause() {
055            return cause;
056        }
057    }