API java : InvalidClassException

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
String	classname           Name of the invalid class.

 

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

 

Method Summary
String	getMessage()           Produce the message and include the classname, if present.

 

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

Name of the invalid class.

InvalidClassException

public InvalidClassException(String reason)

Report a 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.

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).