2
|
1 |
/*
|
5506
|
2 |
* Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved.
|
2
|
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
|
5506
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
2
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
5506
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
2
|
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 |
*
|
5506
|
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.
|
2
|
24 |
*/
|
|
25 |
|
|
26 |
package java.lang.reflect;
|
|
27 |
|
|
28 |
/**
|
|
29 |
* Thrown by a method invocation on a proxy instance if its invocation
|
|
30 |
* handler's {@link InvocationHandler#invoke invoke} method throws a
|
|
31 |
* checked exception (a {@code Throwable} that is not assignable
|
|
32 |
* to {@code RuntimeException} or {@code Error}) that
|
|
33 |
* is not assignable to any of the exception types declared in the
|
|
34 |
* {@code throws} clause of the method that was invoked on the
|
|
35 |
* proxy instance and dispatched to the invocation handler.
|
|
36 |
*
|
|
37 |
* <p>An {@code UndeclaredThrowableException} instance contains
|
|
38 |
* the undeclared checked exception that was thrown by the invocation
|
|
39 |
* handler, and it can be retrieved with the
|
|
40 |
* {@code getUndeclaredThrowable()} method.
|
|
41 |
* {@code UndeclaredThrowableException} extends
|
|
42 |
* {@code RuntimeException}, so it is an unchecked exception
|
|
43 |
* that wraps a checked exception.
|
|
44 |
*
|
|
45 |
* <p>As of release 1.4, this exception has been retrofitted to
|
|
46 |
* conform to the general purpose exception-chaining mechanism. The
|
|
47 |
* "undeclared checked exception that was thrown by the invocation
|
|
48 |
* handler" that may be provided at construction time and accessed via
|
|
49 |
* the {@link #getUndeclaredThrowable()} method is now known as the
|
|
50 |
* <i>cause</i>, and may be accessed via the {@link
|
|
51 |
* Throwable#getCause()} method, as well as the aforementioned "legacy
|
|
52 |
* method."
|
|
53 |
*
|
|
54 |
* @author Peter Jones
|
|
55 |
* @see InvocationHandler
|
|
56 |
* @since 1.3
|
|
57 |
*/
|
|
58 |
public class UndeclaredThrowableException extends RuntimeException {
|
|
59 |
static final long serialVersionUID = 330127114055056639L;
|
|
60 |
|
|
61 |
/**
|
|
62 |
* the undeclared checked exception that was thrown
|
|
63 |
* @serial
|
|
64 |
*/
|
|
65 |
private Throwable undeclaredThrowable;
|
|
66 |
|
|
67 |
/**
|
|
68 |
* Constructs an {@code UndeclaredThrowableException} with the
|
|
69 |
* specified {@code Throwable}.
|
|
70 |
*
|
|
71 |
* @param undeclaredThrowable the undeclared checked exception
|
|
72 |
* that was thrown
|
|
73 |
*/
|
|
74 |
public UndeclaredThrowableException(Throwable undeclaredThrowable) {
|
|
75 |
super((Throwable) null); // Disallow initCause
|
|
76 |
this.undeclaredThrowable = undeclaredThrowable;
|
|
77 |
}
|
|
78 |
|
|
79 |
/**
|
|
80 |
* Constructs an {@code UndeclaredThrowableException} with the
|
|
81 |
* specified {@code Throwable} and a detail message.
|
|
82 |
*
|
|
83 |
* @param undeclaredThrowable the undeclared checked exception
|
|
84 |
* that was thrown
|
|
85 |
* @param s the detail message
|
|
86 |
*/
|
|
87 |
public UndeclaredThrowableException(Throwable undeclaredThrowable,
|
|
88 |
String s)
|
|
89 |
{
|
|
90 |
super(s, null); // Disallow initCause
|
|
91 |
this.undeclaredThrowable = undeclaredThrowable;
|
|
92 |
}
|
|
93 |
|
|
94 |
/**
|
|
95 |
* Returns the {@code Throwable} instance wrapped in this
|
|
96 |
* {@code UndeclaredThrowableException}, which may be {@code null}.
|
|
97 |
*
|
|
98 |
* <p>This method predates the general-purpose exception chaining facility.
|
|
99 |
* The {@link Throwable#getCause()} method is now the preferred means of
|
|
100 |
* obtaining this information.
|
|
101 |
*
|
|
102 |
* @return the undeclared checked exception that was thrown
|
|
103 |
*/
|
|
104 |
public Throwable getUndeclaredThrowable() {
|
|
105 |
return undeclaredThrowable;
|
|
106 |
}
|
|
107 |
|
|
108 |
/**
|
|
109 |
* Returns the cause of this exception (the {@code Throwable}
|
|
110 |
* instance wrapped in this {@code UndeclaredThrowableException},
|
|
111 |
* which may be {@code null}).
|
|
112 |
*
|
|
113 |
* @return the cause of this exception.
|
|
114 |
* @since 1.4
|
|
115 |
*/
|
|
116 |
public Throwable getCause() {
|
|
117 |
return undeclaredThrowable;
|
|
118 |
}
|
|
119 |
}
|