public WeakTable(){
  if (DEBUG != null)   DEBUG.println("Creating WeakTable");
  table=new HashMap();
  refQueue=new ReferenceQueue();
}

public WeakTable ( ) { if ( DEBUG != null ) DEBUG . println ( "Creating WeakTable" ) ; table = new HashMap ( ) ; refQueue = new ReferenceQueue ( ) ; }
create a new weaktable object to maintain the maps .
