InvalidClassException

public class InvalidClassException
extends ObjectStreamException

java.lang.Object
   ↳ java.lang.Throwable
     ↳ java.lang.Exception
       ↳ java.io.IOException
         ↳ java.io.ObjectStreamException
           ↳ java.io.InvalidClassException


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

Summary

Fields

public String classname

Name of the invalid class.

Public constructors

InvalidClassException(String reason)

Report an InvalidClassException for the reason specified.

InvalidClassException(String cname, String reason)

Constructs an InvalidClassException object.

Public methods

String getMessage()

Produce the message and include the classname, if present.

Inherited methods

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.

String getMessage()

Returns the detail message string of this throwable.

StackTraceElement[] getStackTrace()

Provides programmatic access to the stack trace information printed by 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(PrintWriter s)

Prints this throwable and its backtrace to the specified print writer.

void printStackTrace(PrintStream s)

Prints this throwable and its backtrace to the specified print stream.

void setStackTrace(StackTraceElement[] stackTrace)

Sets the stack trace elements that will be returned by getStackTrace() and printed by printStackTrace() and related methods.

String toString()

Returns a short description of this throwable.

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the 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.

String toString()

Returns a string representation of the object.

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.

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()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Fields

classname

Added in API level 1
public String classname

Name of the invalid class.

Public constructors

InvalidClassException

Added in API level 1
public InvalidClassException (String reason)

Report an InvalidClassException for the reason specified.

Parameters
reason String: String describing the reason for the exception.

InvalidClassException

Added in API level 1
public InvalidClassException (String cname, 
                String reason)

Constructs an InvalidClassException object.

Parameters
cname String: a String naming the invalid class.

reason String: a String describing the reason for the exception.

Public methods

getMessage

Added in API level 1
public String getMessage ()

Produce the message and include the classname, if present.

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