001/* ServerCloneException.java -- a UnicastRemoteObject could not be cloned 002 Copyright (c) 1996, 1997, 1998, 1999, 2002 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038package java.rmi.server; 039 040/** 041 * Thrown if a remote exception occurs during the cloning process of a 042 * <code>UnicastRemoteObject</code>. 043 * 044 * @author unknown 045 * @see UnicastRemoteObject#clone() 046 * @since 1.1 047 * @status updated to 1.4 048 */ 049public class ServerCloneException extends CloneNotSupportedException 050{ 051 /** 052 * Compatible with JDK 1.1+. 053 */ 054 private static final long serialVersionUID = 6617456357664815945L; 055 056 /** 057 * The cause of this exception. This pre-dates the exception chaining 058 * of Throwable; and although you can change this field, you are wiser 059 * to leave it alone. 060 * 061 * @serial the exception cause 062 */ 063 public Exception detail; 064 065 /** 066 * Create an exception with a message. 067 * 068 * @param s the message 069 */ 070 public ServerCloneException(String s) 071 { 072 this(s, null); 073 } 074 075 /** 076 * Create an exception with a message and a cause. 077 * 078 * @param s the message 079 * @param e the cause 080 */ 081 public ServerCloneException(String s, Exception e) 082 { 083 super(s); 084 initCause(e); 085 detail = e; 086 } 087 088 /** 089 * This method returns a message indicating what went wrong, in this 090 * format: 091 * <code>super.getMessage() + (detail == null ? "" 092 * : "; nested exception is:\n\t" + detail)</code>. 093 * 094 * @return the chained message 095 */ 096 public String getMessage() 097 { 098 if (detail == this || detail == null) 099 return super.getMessage(); 100 return super.getMessage() + "; nested exception is:\n\t" + detail; 101 } 102 103 /** 104 * Returns the cause of this exception. Note that this may not be the 105 * original cause, thanks to the <code>detail</code> field being public 106 * and non-final (yuck). However, to avoid violating the contract of 107 * Throwable.getCause(), this returns null if <code>detail == this</code>, 108 * as no exception can be its own cause. 109 * 110 * @return the cause 111 * @since 1.4 112 */ 113 public Throwable getCause() 114 { 115 return detail == this ? null : detail; 116 } 117}