01: /*
02: *
03: *
04: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package java.lang;
28:
29: /**
30: * Thrown when an application attempts to use <code>null</code> in a
31: * case where an object is required. These include:
32: * <ul>
33: * <li>Calling the instance method of a <code>null</code> object.
34: * <li>Accessing or modifying the field of a <code>null</code> object.
35: * <li>Taking the length of <code>null</code> as if it were an array.
36: * <li>Accessing or modifying the slots of <code>null</code> as if it
37: * were an array.
38: * <li>Throwing <code>null</code> as if it were a <code>Throwable</code>
39: * value.
40: * </ul>
41: * <p>
42: * Applications should throw instances of this class to indicate
43: * other illegal uses of the <code>null</code> object.
44: *
45: * @version 12/17/01 (CLDC 1.1)
46: * @since JDK1.0, CLDC 1.0
47: */
48: public class NullPointerException extends RuntimeException {
49: /**
50: * Constructs a <code>NullPointerException</code> with no detail message.
51: */
52: public NullPointerException() {
53: super ();
54: }
55:
56: /**
57: * Constructs a <code>NullPointerException</code> with the specified
58: * detail message.
59: *
60: * @param s the detail message.
61: */
62: public NullPointerException(String s) {
63: super(s);
64: }
65: }
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