/*
 * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.io;

/**
 * Thrown when the Serialization runtime detects one of the following
 * problems with a Class.
 * <UL>
 * <LI> The serial version of the class does not match that of the class
 * descriptor read from the stream
 * <LI> The class contains unknown datatypes
 * <LI> The class does not have an accessible no-arg constructor
 * </UL>
 *
 * @author unascribed
 * @since JDK1.1
 */
public class InvalidClassException extends ObjectStreamException {

 private static final long serialVersionUID = -4333316296251054416L;

 /**
 * Name of the invalid class.
 *
 * @serial Name of the invalid class.
 */
 public String classname;

 /**
 * Report an InvalidClassException for the reason specified.
 *
 * @param reason String describing the reason for the exception.
 */
 public InvalidClassException(String reason) {
 super(reason);
 }

 /**
 * Constructs an InvalidClassException object.
 *
 * @param cname a String naming the invalid class.
 * @param reason a String describing the reason for the exception.
 */
 public InvalidClassException(String cname, String reason) {
 super(reason);
 classname = cname;
 }

 /**
 * Produce the message and include the classname, if present.
 */
 public String getMessage() {
 if (classname == null)
 return super.getMessage();
 else
 return classname + "; " + super.getMessage();
 }
}