Java In A Nutshell, 5th Edition

An exception of this type is thrown from Instrumentation.redefineClasses( ) if a requested redefinition cannot be performed. This might occur, for example, if the redefinition attempts to add or remove members from the class.

public class UnmodifiableClassException extends Exception { // Public Constructors public UnmodifiableClassException ( ); public UnmodifiableClassException (String s ); }

Thrown By

Instrumentation.redefineClasses( )