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
• The ObjectStreamClass of an enum constant does not represent an enum type
• Other conditions given in the Java Object Serialization Specification

Since:

1.1

See Also:

• Serialized Form

Field Summary

Fields

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

Constructor Summary

Constructors

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

Method Summary

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

Methods declared in class Throwable

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

Modifier and Type	Method	Description
final void	addSuppressed(Throwable exception)	Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
Throwable	fillInStackTrace()	Fills in the execution stack trace.
Throwable	getCause()	Returns the cause of this throwable or null if the cause is nonexistent or unknown.
String	getLocalizedMessage()	Creates a localized description of this throwable.
StackTraceElement[]	getStackTrace()	Provides programmatic access to the stack trace information printed by Throwable.printStackTrace().
final Throwable[]	getSuppressed()	Returns an array containing all of the exceptions that were suppressed, typically by the try-with-resources statement, in order to deliver this exception.
Throwable	initCause(Throwable cause)	Initializes the cause of this throwable to the specified value.
void	printStackTrace()	Prints this throwable and its backtrace to the standard error stream.
void	printStackTrace(PrintStream s)	Prints this throwable and its backtrace to the specified print stream.
void	printStackTrace(PrintWriter s)	Prints this throwable and its backtrace to the specified print writer.
void	setStackTrace(StackTraceElement[] stackTrace)	Sets the stack trace elements that will be returned by Throwable.getStackTrace() and printed by Throwable.printStackTrace() and related methods.
String	toString()	Returns a short description of this throwable.

Methods declared in class Object

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

Modifier and Type	Method	Description
protected Object	clone()	Creates and returns a copy of this object.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
final Class<?>	getClass()	Returns the runtime class of this Object.
int	hashCode()	Returns a hash code value for this object.
final void	notify()	Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll()	Wakes up all threads that are waiting on this object's monitor.
final void	wait()	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
final void	wait(long timeoutMillis)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final void	wait(long timeoutMillis, int nanos)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Field Details

classname

public String classname

Name of the invalid class.

Constructor Details

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.

InvalidClassException

public InvalidClassException(String reason,
 Throwable cause)

Report an InvalidClassException for the reason and cause specified.

Parameters:

reason - String describing the reason for the exception.

cause - the cause

Since:

19

InvalidClassException

public InvalidClassException(String cname,
 String reason,
 Throwable cause)

Report an InvalidClassException for the reason and cause specified.

Parameters:

cname - a String naming the invalid class.

reason - String describing the reason for the exception.

cause - the cause

Since:

19

Method Details

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).