001/* ExceptionInInitializerError.java -- thrown when class initialization fails 002 with an uncaught exception 003 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Free Software Foundation, Inc. 004 005This file is part of GNU Classpath. 006 007GNU Classpath is free software; you can redistribute it and/or modify 008it under the terms of the GNU General Public License as published by 009the Free Software Foundation; either version 2, or (at your option) 010any later version. 011 012GNU Classpath is distributed in the hope that it will be useful, but 013WITHOUT ANY WARRANTY; without even the implied warranty of 014MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015General Public License for more details. 016 017You should have received a copy of the GNU General Public License 018along with GNU Classpath; see the file COPYING. If not, write to the 019Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02002110-1301 USA. 021 022Linking this library statically or dynamically with other modules is 023making a combined work based on this library. Thus, the terms and 024conditions of the GNU General Public License cover the whole 025combination. 026 027As a special exception, the copyright holders of this library give you 028permission to link this library with independent modules to produce an 029executable, regardless of the license terms of these independent 030modules, and to copy and distribute the resulting executable under 031terms of your choice, provided that you also meet, for each linked 032independent module, the terms and conditions of the license of that 033module. An independent module is a module which is not derived from 034or based on this library. If you modify this library, you may extend 035this exception to your version of the library, but you are not 036obligated to do so. If you do not wish to do so, delete this 037exception statement from your version. */ 038 039 040package java.lang; 041 042/** 043 * An <code>ExceptionInInitializerError</code> is thrown when an uncaught 044 * exception has occurred in a static initializer or the initializer for a 045 * static variable. In general, this wraps only RuntimeExceptions, since the 046 * compiler does not allow a checked exception to be uncaught in an 047 * initializer. This exception only occurs during reflection, when a class 048 * is initialized as part of another action. 049 * 050 * @author Brian Jones 051 * @author Tom Tromey (tromey@cygnus.com) 052 * @author Eric Blake (ebb9@email.byu.edu) 053 * @since 1.1 054 * @status updated to 1.4 055 */ 056public class ExceptionInInitializerError extends LinkageError 057{ 058 /** 059 * Compatible with JDK 1.1+. 060 */ 061 static final long serialVersionUID = 1521711792217232256L; 062 063 /** 064 * The cause of this exception (duplicates the one stored in Throwable). 065 * 066 * @serial the exception cause 067 */ 068 private final Throwable exception; 069 070 /** 071 * Create an error without a message. The cause is initialized as null. 072 */ 073 public ExceptionInInitializerError() 074 { 075 this((String) null); 076 } 077 078 /** 079 * Create an error with a message. The cause is initialized as null. 080 * 081 * @param s the message 082 */ 083 public ExceptionInInitializerError(String s) 084 { 085 super(s); 086 exception = null; 087 } 088 089 /** 090 * Creates an error an saves a reference to the <code>Throwable</code> 091 * object. The message string is null. 092 * 093 * @param t the exception thrown 094 */ 095 public ExceptionInInitializerError(Throwable t) 096 { 097 super(null); 098 initCause(t); 099 exception = t; 100 } 101 102 /** 103 * Return the exception that caused this error to be created. This is a 104 * legacy method; the preferred choice now is {@link Throwable#getCause()}. 105 * 106 * @return the cause, or null if unknown 107 */ 108 public Throwable getException() 109 { 110 return exception; 111 } 112 113 /** 114 * Return the exception that cause this error to be created. 115 * 116 * @return the cause, or null if unknown 117 * @since 1.4 118 */ 119 public Throwable getCause() 120 { 121 return exception; 122 } 123}