CannotInvokeException.java revision 69e17611504376e4d4603925f8528dfc890fd2c6 
1/*
2 * Javassist, a Java-bytecode translator toolkit.
3 * Copyright (C) 1999-2007 Shigeru Chiba. All Rights Reserved.
4 *
5 * The contents of this file are subject to the Mozilla Public License Version
6 * 1.1 (the "License"); you may not use this file except in compliance with
7 * the License.  Alternatively, the contents of this file may be used under
8 * the terms of the GNU Lesser General Public License Version 2.1 or later.
9 *
10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 * for the specific language governing rights and limitations under the
13 * License.
14 */
15
16package javassist.tools.reflect;
17
18import java.lang.reflect.InvocationTargetException;
19import java.lang.IllegalAccessException;
20
21/**
22 * Thrown when method invocation using the reflection API has thrown
23 * an exception.
24 *
25 * @see javassist.tools.reflect.Metaobject#trapMethodcall(int, Object[])
26 * @see javassist.tools.reflect.ClassMetaobject#trapMethodcall(int, Object[])
27 * @see javassist.tools.reflect.ClassMetaobject#invoke(Object, int, Object[])
28 */
29public class CannotInvokeException extends RuntimeException {
30
31    private Throwable err = null;
32
33    /**
34     * Returns the cause of this exception.  It may return null.
35     */
36    public Throwable getReason() { return err; }
37
38    /**
39     * Constructs a CannotInvokeException with an error message.
40     */
41    public CannotInvokeException(String reason) {
42        super(reason);
43    }
44
45    /**
46     * Constructs a CannotInvokeException with an InvocationTargetException.
47     */
48    public CannotInvokeException(InvocationTargetException e) {
49        super("by " + e.getTargetException().toString());
50        err = e.getTargetException();
51    }
52
53    /**
54     * Constructs a CannotInvokeException with an IllegalAccessException.
55     */
56    public CannotInvokeException(IllegalAccessException e) {
57        super("by " + e.toString());
58        err = e;
59    }
60
61    /**
62     * Constructs a CannotInvokeException with an ClassNotFoundException.
63     */
64    public CannotInvokeException(ClassNotFoundException e) {
65        super("by " + e.toString());
66        err = e;
67    }
68}
69