1 /* ServerCloneException.java -- a UnicastRemoteObject could not be cloned 2 Copyright (c) 1996, 1997, 1998, 1999, 2002 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 package java.rmi.server; 39 40 /** 41 * Thrown if a remote exception occurs during the cloning process of a 42 * <code>UnicastRemoteObject</code>. 43 * 44 * @author unknown 45 * @see UnicastRemoteObject#clone() 46 * @since 1.1 47 * @status updated to 1.4 48 */ 49 public class ServerCloneException extends CloneNotSupportedException 50 { 51 /** 52 * Compatible with JDK 1.1+. 53 */ 54 private static final long serialVersionUID = 6617456357664815945L; 55 56 /** 57 * The cause of this exception. This pre-dates the exception chaining 58 * of Throwable; and although you can change this field, you are wiser 59 * to leave it alone. 60 * 61 * @serial the exception cause 62 */ 63 public Exception detail; 64 65 /** 66 * Create an exception with a message. 67 * 68 * @param s the message 69 */ ServerCloneException(String s)70 public ServerCloneException(String s) 71 { 72 this(s, null); 73 } 74 75 /** 76 * Create an exception with a message and a cause. 77 * 78 * @param s the message 79 * @param e the cause 80 */ ServerCloneException(String s, Exception e)81 public ServerCloneException(String s, Exception e) 82 { 83 super(s); 84 initCause(e); 85 detail = e; 86 } 87 88 /** 89 * This method returns a message indicating what went wrong, in this 90 * format: 91 * <code>super.getMessage() + (detail == null ? "" 92 * : "; nested exception is:\n\t" + detail)</code>. 93 * 94 * @return the chained message 95 */ getMessage()96 public String getMessage() 97 { 98 if (detail == this || detail == null) 99 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 */ getCause()113 public Throwable getCause() 114 { 115 return detail == this ? null : detail; 116 } 117 } 118