public Object getObjectInstance(Object reference,
    Name name,
    Context contex,
    Hashtable properties) throws Exception 
{
                                                                                                                                         
      boolean debug = cat.isDebugEnabled();
      if (debug)
         cat.debug( "Extracting SpyConnectionFactory from reference" );
      try {
         javax.naming.Reference ref = ( javax.naming.Reference )reference;
         GenericConnectionFactory dcf = ( GenericConnectionFactory )
               ObjectRefAddr.extractObjectRefFrom( ref, "DCF" );
        if (debug)
	         cat.debug("The GenericConnectionFactory is: "+dcf);
         if ( ref.getClassName().equals( "org.jboss.mq.SpyConnectionFactory" ) ) {
            return new org.jboss.mq.SpyConnectionFactory( dcf );
         } else if ( ref.getClassName().equals( "org.jboss.mq.SpyXAConnectionFactory" ) ) {
            return new org.jboss.mq.SpyXAConnectionFactory( dcf );
         }
      } catch ( Throwable ignore ) {
         ignore.printStackTrace();
         // This method should not throw an exception since
         // It would prevent another ObjectFactory from attempting
         // to create an instance of the object.
      }
      return null;
}

getObjectInstance method.