1 /*
2 * Copyright 1995-2000 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 java.lang;
27
28 /**
29 * <code>RuntimeException</code> is the superclass of those
30 * exceptions that can be thrown during the normal operation of the
31 * Java Virtual Machine.
32 * <p>
33 * A method is not required to declare in its <code>throws</code>
34 * clause any subclasses of <code>RuntimeException</code> that might
35 * be thrown during the execution of the method but not caught.
36 *
37 *
38 * @author Frank Yellin
39 * @since JDK1.0
40 */
41 public class RuntimeException extends Exception {
42 static final long serialVersionUID = -7034897190745766939L;
43
44 /** Constructs a new runtime exception with <code>null</code> as its
45 * detail message. The cause is not initialized, and may subsequently be
46 * initialized by a call to {@link #initCause}.
47 */
48 public RuntimeException() {
49 super();
50 }
51
52 /** Constructs a new runtime exception with the specified detail message.
53 * The cause is not initialized, and may subsequently be initialized by a
54 * call to {@link #initCause}.
55 *
56 * @param message the detail message. The detail message is saved for
57 * later retrieval by the {@link #getMessage()} method.
58 */
59 public RuntimeException(String message) {
60 super(message);
61 }
62
63 /**
64 * Constructs a new runtime exception with the specified detail message and
65 * cause. <p>Note that the detail message associated with
66 * <code>cause</code> is <i>not</i> automatically incorporated in
67 * this runtime exception's detail message.
68 *
69 * @param message the detail message (which is saved for later retrieval
70 * by the {@link #getMessage()} method).
71 * @param cause the cause (which is saved for later retrieval by the
72 * {@link #getCause()} method). (A <tt>null</tt> value is
73 * permitted, and indicates that the cause is nonexistent or
74 * unknown.)
75 * @since 1.4
76 */
77 public RuntimeException(String message, Throwable cause) {
78 super(message, cause);
79 }
80
81 /** Constructs a new runtime exception with the specified cause and a
82 * detail message of <tt>(cause==null ? null : cause.toString())</tt>
83 * (which typically contains the class and detail message of
84 * <tt>cause</tt>). This constructor is useful for runtime exceptions
85 * that are little more than wrappers for other throwables.
86 *
87 * @param cause the cause (which is saved for later retrieval by the
88 * {@link #getCause()} method). (A <tt>null</tt> value is
89 * permitted, and indicates that the cause is nonexistent or
90 * unknown.)
91 * @since 1.4
92 */
93 public RuntimeException(Throwable cause) {
94 super(cause);
95 }
96 }
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