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 @java.io.Serial 43 private static final long serialVersionUID = 8125925355765570191L; 44 45 /** 46 * The {@code Method} object for the annotation element. 47 */ 48 private final transient Method element; 49 50 /** 51 * The (erroneous) type of data found in the annotation. This string 52 * may, but is not required to, contain the value as well. The exact 53 * format of the string is unspecified. 54 */ 55 private final String foundType; 56 57 /** 58 * Constructs an AnnotationTypeMismatchException for the specified 59 * annotation type element and found data type. 60 * 61 * @param element the {@code Method} object for the annotation 62 * element, may be {@code null} 63 * @param foundType the (erroneous) type of data found in the annotation. 64 * This string may, but is not required to, contain the value 65 * as well. The exact format of the string is unspecified, 66 * may be {@code null}. 67 */ 68 public AnnotationTypeMismatchException(Method element, String foundType) { 69 super("Incorrectly typed data found for annotation element " + element 70 + " (Found data of type " + foundType + ")"); 71 this.element = element; 72 this.foundType = foundType; 73 } 74 75 /** 76 * Returns the {@code Method} object for the incorrectly typed element. 77 * The value may be unavailable if this exception has been 78 * serialized and then read back in. 79 * 80 * @return the {@code Method} object for the incorrectly typed 81 * element, or {@code null} if unavailable 82 */ 83 public Method element() { 84 return this.element; 85 } 86 87 /** 88 * Returns the type of data found in the incorrectly typed element. 89 * The returned string may, but is not required to, contain the value 90 * as well. The exact format of the string is unspecified and the string 91 * may be {@code null}. 92 * 93 * @return the type of data found in the incorrectly typed element 94 */ 95 public String foundType() { 96 return this.foundType; 97 } 98 }