1 /* AssertionError.java -- indication of a failed assertion 2 Copyright (C) 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., 59 Temple Place, Suite 330, Boston, MA 19 02111-1307 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 39 package java.lang; 40 41 /** 42 * An assertion error normally occurs as a result of the <code>assert</code> 43 * statement added in JDK 1.4, to indicate that an assertion failed. There 44 * are enough constructors to ensure that 45 * <code>new AssertionError(<em>expression</em>)</code> will work for all 46 * espressions, regardless of type, as if the error message were given by 47 * the string <code>"" + <em>expression</em></code>. This extends Error, 48 * because you usually do not want to inadvertently trap an assertion failure. 49 * 50 * @author Eric Blake <ebb9@email.byu.edu> 51 * @since 1.4 52 * @status updated to 1.4 53 */ 54 public class AssertionError extends Error 55 { 56 /** 57 * Compatible with JDK 1.4+. 58 */ 59 private static final long serialVersionUID = -5013299493970297370L; 60 61 /** 62 * Construct an AssertionError with no detail message. 63 */ AssertionError()64 public AssertionError() 65 { 66 } 67 68 /** 69 * Construct an AssertionError with the string conversion of the given 70 * object as its error message. If the object is a Throwable, it is also 71 * set as the cause of this error. 72 * 73 * @param msg the source of the error message 74 * @see Throwable#getCause() 75 */ AssertionError(Object msg)76 public AssertionError(Object msg) 77 { 78 super("" + msg); 79 if (msg instanceof Throwable) 80 initCause((Throwable) msg); 81 } 82 83 /** 84 * Construct an AssertionError with the string conversion of the given 85 * boolean as its error message. 86 * 87 * @param msg the source of the error message 88 */ AssertionError(boolean msg)89 public AssertionError(boolean msg) 90 { 91 super(msg ? "true" : "false"); 92 } 93 94 /** 95 * Construct an AssertionError with the string conversion of the given 96 * char as its error message. 97 * 98 * @param msg the source of the error message 99 */ AssertionError(char msg)100 public AssertionError(char msg) 101 { 102 super(String.valueOf(msg)); 103 } 104 105 /** 106 * Construct an AssertionError with the string conversion of the given 107 * int as its error message. 108 * 109 * @param msg the source of the error message 110 */ AssertionError(int msg)111 public AssertionError(int msg) 112 { 113 super(Integer.toString(msg, 10)); 114 } 115 116 /** 117 * Construct an AssertionError with the string conversion of the given 118 * long as its error message. 119 * 120 * @param msg the source of the error message 121 */ AssertionError(long msg)122 public AssertionError(long msg) 123 { 124 super(Long.toString(msg)); 125 } 126 127 /** 128 * Construct an AssertionError with the string conversion of the given 129 * float as its error message. 130 * 131 * @param msg the source of the error message 132 */ AssertionError(float msg)133 public AssertionError(float msg) 134 { 135 super(Float.toString(msg)); 136 } 137 138 /** 139 * Construct an AssertionError with the string conversion of the given 140 * double as its error message. 141 * 142 * @param msg the source of the error message 143 */ AssertionError(double msg)144 public AssertionError(double msg) 145 { 146 super(Double.toString(msg)); 147 } 148 } 149