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Showing content from https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/InvalidClassException.html below:

InvalidClassException (Java SE 21 & JDK 21)

All Implemented Interfaces:

Serializable

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

  Name of the invalid class.

• Constructor Summary

  Constructors

  Report an InvalidClassException for the reason specified.

  Constructs an InvalidClassException object.

  Report an InvalidClassException for the reason and cause specified.

  Report an InvalidClassException for the reason and cause specified.

• Method Summary

  Produce the message and include the classname, if present.

  Methods declared in class java.lang.ThrowableaddSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

• Field Details
  • 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

    Constructs an InvalidClassException object.

    Parameters:

    cname - a String naming the invalid class.

    reason - a String describing the reason for the exception.

  • InvalidClassException

    Report an InvalidClassException for the reason and cause specified.

    Parameters:

    reason - String describing the reason for the exception.

    cause - the cause

    Since:

    19

  • InvalidClassException

    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

    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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