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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:

Field Summary

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

Constructor Summary

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 java.lang.Throwable

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

Methods declared in class java.lang.Object

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

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).

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/InvalidClassException.html