TIOBE - Java Coding Standard

Rule: CloneImplementation3

This rule is Obsolete
Synopsis:	clone() method should be implemented only if implementing Cloneable interface
Language:	Java
Severity Level:	2
Category:	CloneImplementation

Description:

The method clone() should only be implemented if the class implements the Cloneable interface with the exception of a final method that only throws CloneNotSupportedException.

public class MyClass {
 public Object clone() throws CloneNotSupportedException {
  return foo;
 }
}