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

A problem was found with the class of one of the objects being serialized or deserialized. These can be

• The SUIDs of the class loaded by the VM and the serialized class info do not match
• A serializable or externalizable object cannot be instantiated (when deserializing) because the empty constructor that needs to be run is not visible or fails.

See Also:

#readObject(), ObjectInputValidation.validateObject(), Serialized Form

Field Summary

String

classname The fully qualified name of the class that caused the problem

Constructor Summary

InvalidClassException(String detailMessage)
Constructs a new instance of this class with its walkback and message filled in.

InvalidClassException(String className, String detailMessage)
Constructs a new instance of this class with its walkback, message and the fully qualified name of the class which caused the exception filled in.

Method Summary

String

getMessage() Returns the extra information message which was provided when the exception was created.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, 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

The fully qualified name of the class that caused the problem

Constructor Detail

InvalidClassException

public InvalidClassException(String detailMessage)

Constructs a new instance of this class with its walkback and message filled in.

Parameters:

detailMessage - The detail message for the exception.

InvalidClassException

public InvalidClassException(String className,
                             String detailMessage)

Constructs a new instance of this class with its walkback, message and the fully qualified name of the class which caused the exception filled in.

Parameters:

className - The detail message for the exception.

detailMessage - The detail message for the exception.

Method Detail

getMessage

public String getMessage()

Returns the extra information message which was provided when the exception was created. If no message was provided at creation time, then answer null. If a message was provided and a class name which caused the exception, the values are concatenated and returned.

Overrides:

getMessage in class Throwable

Returns:

The receiver's message, possibly concatenated with the name of the class that caused the problem.