1 /* 2 * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 22 * CA 95054 USA or visit www.sun.com if you need additional information or 23 * have any questions. 24 */ 25 26 package javax.lang.model.element; 27 28 /** 29 * Indicates that an unknown kind of annotation value was encountered. 30 * This can occur if the language evolves and new kinds of annotation 31 * values can be stored in an annotation. May be thrown by an 32 * {@linkplain AnnotationValueVisitor annotation value visitor} to 33 * indicate that the visitor was created for a prior version of the 34 * language. 35 * 36 * @author Joseph D. Darcy 37 * @author Scott Seligman 38 * @author Peter von der Ahé 39 * @see AnnotationValueVisitor#visitUnknown 40 * @since 1.6 41 */ 42 public class UnknownAnnotationValueException extends RuntimeException { 43 44 private static final long serialVersionUID = 269L; 45 46 private transient AnnotationValue av; 47 private transient Object parameter; 48 49 /** 50 * Creates a new {@code UnknownAnnotationValueException}. The 51 * {@code p} parameter may be used to pass in an additional 52 * argument with information about the context in which the 53 * unknown annotation value was encountered; for example, the 54 * visit methods of {@link AnnotationValueVisitor} may pass in 55 * their additional parameter. 56 * 57 * @param av the unknown annotation value, may be {@code null} 58 * @param p an additional parameter, may be {@code null} 59 */ 60 public UnknownAnnotationValueException(AnnotationValue av, Object p) { 61 super("Unknown annotation value: " + av); 62 this.av = av; 63 this.parameter = p; 64 } 65 66 /** 67 * Returns the unknown annotation value. 68 * The value may be unavailable if this exception has been 69 * serialized and then read back in. 70 * 71 * @return the unknown element, or {@code null} if unavailable 72 */ 73 public AnnotationValue getUnknownAnnotationValue() { 74 return av; 75 } 76 77 /** 78 * Returns the additional argument. 79 * 80 * @return the additional argument 81 */ 82 public Object getArgument() { 83 return parameter; 84 } 85 }