/** JBoss, the OpenSource J2EE webOS** Distributable under LGPL license.* See terms of license at gnu.org.*/package test.interfaces;import java.io.Serializable;/** * Base Data Container for all other Value Objects * * @author Andreas Schaefer * @version $Revision: 1.1 $ **/public abstract class AbstractData   implements Cloneable, Serializable{   /**    * Returns a copy of itself. Is necessary because this    * method is protected within java.lang.Object.    *    * @return Copy of this instance    **/   public Object clone()   {      try      {         return super.clone();      }      catch( CloneNotSupportedException cnse )      {         // This never happens         return null;      }   }}