01 /*
02 * Copyright 1996-2006 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * 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.io;
27
28 /**
29 * Thrown when the Serialization runtime detects one of the following
30 * problems with a Class.
31 * <UL>
32 * <LI> The serial version of the class does not match that of the class
33 * descriptor read from the stream
34 * <LI> The class contains unknown datatypes
35 * <LI> The class does not have an accessible no-arg constructor
36 * </UL>
37 *
38 * @author unascribed
39 * @version 1.30, 05/05/07
40 * @since JDK1.1
41 */
42 public class InvalidClassException extends ObjectStreamException {
43
44 private static final long serialVersionUID = -4333316296251054416L;
45
46 /**
47 * Name of the invalid class.
48 *
49 * @serial Name of the invalid class.
50 */
51 public String classname;
52
53 /**
54 * Report an InvalidClassException for the reason specified.
55 *
56 * @param reason String describing the reason for the exception.
57 */
58 public InvalidClassException(String reason) {
59 super (reason);
60 }
61
62 /**
63 * Constructs an InvalidClassException object.
64 *
65 * @param cname a String naming the invalid class.
66 * @param reason a String describing the reason for the exception.
67 */
68 public InvalidClassException(String cname, String reason) {
69 super (reason);
70 classname = cname;
71 }
72
73 /**
74 * Produce the message and include the classname, if present.
75 */
76 public String getMessage() {
77 if (classname == null)
78 return super .getMessage();
79 else
80 return classname + "; " + super.getMessage();
81 }
82 }
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