java.io

Class InvalidClassException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.io.IOException

java.io.ObjectStreamException

java.io.InvalidClassException

All Implemented Interfaces:

Serializable

public class InvalidClassException
extends ObjectStreamException

Thrown when the Serialization runtime detects one of the following problems with a Class.

• The serial version of the class does not match that of the class descriptor read from the stream
• The class contains unknown datatypes
• The class does not have an accessible no-arg constructor

Since:

JDK1.1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
String	classname Name of the invalid class.

Constructor Summary

Constructors

Constructor and Description
InvalidClassException(String reason) Report an InvalidClassException for the reason specified.
InvalidClassException(String cname, String reason) Constructs an InvalidClassException object.

Method Summary

Methods

Modifier and Type	Method and Description
String	getMessage() Produce the message and include the classname, if present.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

classname

public String classname

Name of the invalid class.

Constructor Detail

InvalidClassException

public InvalidClassException(String reason)

Report an InvalidClassException for the reason specified.

Parameters:

reason - String describing the reason for the exception.

InvalidClassException

public InvalidClassException(String cname,
                     String reason)

Constructs an InvalidClassException object.

Parameters:

cname - a String naming the invalid class.

reason - a String describing the reason for the exception.

Method Detail

getMessage

public String getMessage()

Produce the message and include the classname, if present.

Overrides:

getMessage in class Throwable

Returns:

the detail message string of this Throwable instance (which may be null).