1 /* 2 * Copyright (c) 1996, 2004, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.lang.reflect; 27 28 /** 29 * InvocationTargetException is a checked exception that wraps 30 * an exception thrown by an invoked method or constructor. 31 * 32 * <p>As of release 1.4, this exception has been retrofitted to conform to 33 * the general purpose exception-chaining mechanism. The "target exception" 34 * that is provided at construction time and accessed via the 35 * {@link #getTargetException()} method is now known as the <i>cause</i>, 36 * and may be accessed via the {@link Throwable#getCause()} method, 37 * as well as the aforementioned "legacy method." 38 * 39 * @see Method 40 * @see Constructor 41 * @since 1.1 42 */ 43 public class InvocationTargetException extends ReflectiveOperationException { 44 /** 45 * Use serialVersionUID from JDK 1.1.X for interoperability 46 */ 47 @java.io.Serial 48 private static final long serialVersionUID = 4085088731926701167L; 49 50 /** 51 * This field holds the target if the 52 * InvocationTargetException(Throwable target) constructor was 53 * used to instantiate the object 54 * 55 * @serial 56 * 57 */ 58 private Throwable target; 59 60 /** 61 * Constructs an {@code InvocationTargetException} with 62 * {@code null} as the target exception. 63 */ 64 protected InvocationTargetException() { 65 super((Throwable)null); // Disallow initCause 66 } 67 68 /** 69 * Constructs a InvocationTargetException with a target exception. 70 * 71 * @param target the target exception 72 */ 73 public InvocationTargetException(Throwable target) { 74 super((Throwable)null); // Disallow initCause 75 this.target = target; 76 } 77 78 /** 79 * Constructs a InvocationTargetException with a target exception 80 * and a detail message. 81 * 82 * @param target the target exception 83 * @param s the detail message 84 */ 85 public InvocationTargetException(Throwable target, String s) { 86 super(s, null); // Disallow initCause 87 this.target = target; 88 } 89 90 /** 91 * Get the thrown target exception. 92 * 93 * <p>This method predates the general-purpose exception chaining facility. 94 * The {@link Throwable#getCause()} method is now the preferred means of 95 * obtaining this information. 96 * 97 * @return the thrown target exception (cause of this exception). 98 */ 99 public Throwable getTargetException() { 100 return target; 101 } 102 103 /** 104 * Returns the cause of this exception (the thrown target exception, 105 * which may be {@code null}). 106 * 107 * @return the cause of this exception. 108 * @since 1.4 109 */ 110 public Throwable getCause() { 111 return target; 112 } 113 }