001    /**
002     *
003     * Copyright 2003-2004 The Apache Software Foundation
004     *
005     *  Licensed under the Apache License, Version 2.0 (the "License");
006     *  you may not use this file except in compliance with the License.
007     *  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    
018    package javax.mail;
019    
020    /**
021     * @version $Rev: 54266 $ $Date: 2004-10-10 14:02:50 -0700 (Sun, 10 Oct 2004) $
022     */
023    public class MessagingException extends Exception {
024        // Required because serialization expects it to be here
025        private Exception next;
026    
027        public MessagingException() {
028            super();
029        }
030    
031        public MessagingException(String message) {
032            super(message);
033        }
034    
035        public MessagingException(String message, Exception cause) {
036            super(message, cause);
037            next = cause;
038        }
039    
040        public Exception getNextException() {
041            return next;
042        }
043    
044        public synchronized boolean setNextException(Exception cause) {
045            if (next == null) {
046                initCause(cause);
047                next = cause;
048                return true;
049            } else if (next instanceof MessagingException) {
050                return ((MessagingException) next).setNextException(cause);
051            } else {
052                return false;
053            }
054        }
055    
056        public String getMessage() {
057            Exception next = getNextException();
058            if (next == null) {
059                return super.getMessage();
060            } else {
061                return super.getMessage()
062                        + " ("
063                        + next.getClass().getName()
064                        + ": "
065                        + next.getMessage()
066                        + ")";
067            }
068        }
069    }