1 /* 2 * Copyright (c) 2003, 2016, 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.annotation; 27 import java.lang.reflect.Method; 28 29 /** 30 * Thrown to indicate that a program has attempted to access an element of 31 * an annotation whose type has changed after the annotation was compiled 32 * (or serialized). 33 * This exception can be thrown by the {@linkplain 34 * java.lang.reflect.AnnotatedElement API used to read annotations 35 * reflectively}. 36 * 37 * @author Josh Bloch 38 * @see java.lang.reflect.AnnotatedElement 39 * @since 1.5 40 */ 41 public class AnnotationTypeMismatchException extends RuntimeException { 42 private static final long serialVersionUID = 8125925355765570191L; 43 44 /** 45 * The {@code Method} object for the annotation element. 46 */ 47 private final transient Method element; 48 49 /** 50 * The (erroneous) type of data found in the annotation. This string 51 * may, but is not required to, contain the value as well. The exact 52 * format of the string is unspecified. 53 */ 54 private final String foundType; 55 56 /** 57 * Constructs an AnnotationTypeMismatchException for the specified 58 * annotation type element and found data type. 59 * 60 * @param element the {@code Method} object for the annotation 61 * element, may be {@code null} 62 * @param foundType the (erroneous) type of data found in the annotation. 63 * This string may, but is not required to, contain the value 64 * as well. The exact format of the string is unspecified, 65 * may be {@code null}. 66 */ 67 public AnnotationTypeMismatchException(Method element, String foundType) { 68 super("Incorrectly typed data found for annotation element " + element 69 + " (Found data of type " + foundType + ")"); 70 this.element = element; 71 this.foundType = foundType; 72 } 73 74 /** 75 * Returns the {@code Method} object for the incorrectly typed element. 76 * The value may be unavailable if this exception has been 77 * serialized and then read back in. 78 * 79 * @return the {@code Method} object for the incorrectly typed 80 * element, or {@code null} if unavailable 81 */ 82 public Method element() { 83 return this.element; 84 } 85 86 /** 87 * Returns the type of data found in the incorrectly typed element. 88 * The returned string may, but is not required to, contain the value 89 * as well. The exact format of the string is unspecified and the string 90 * may be {@code null}. 91 * 92 * @return the type of data found in the incorrectly typed element 93 */ 94 public String foundType() { 95 return this.foundType; 96 } 97 }