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8  * particular file as subject to the "Classpath" exception as provided
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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
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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 <tt>Method</tt> object for the annotation element.
46      */
47     private final 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 <tt>Method</tt> object for the annotation element
61      * @param foundType the (erroneous) type of data found in the annotation.
62      *        This string may, but is not required to, contain the value
63      *        as well.  The exact format of the string is unspecified.
64      */
AnnotationTypeMismatchException(Method element, String foundType)65     public AnnotationTypeMismatchException(Method element, String foundType) {
66         super("Incorrectly typed data found for annotation element " + element
67               + " (Found data of type " + foundType + ")");
68         this.element = element;
69         this.foundType = foundType;
70     }
71 
72     /**
73      * Returns the <tt>Method</tt> object for the incorrectly typed element.
74      *
75      * @return the <tt>Method</tt> object for the incorrectly typed element
76      */
element()77     public Method element() {
78         return this.element;
79     }
80 
81     /**
82      * Returns the type of data found in the incorrectly typed element.
83      * The returned string may, but is not required to, contain the value
84      * as well.  The exact format of the string is unspecified.
85      *
86      * @return the type of data found in the incorrectly typed element
87      */
foundType()88     public String foundType() {
89         return this.foundType;
90     }
91 }
92