@Override protected boolean checkEntryNotValid(RegionEntry mapEntry){
  return (super.checkEntryNotValid(mapEntry) || mapEntry.getKey() instanceof ThreadIdentifier);
}

@ Override protected boolean checkEntryNotValid ( RegionEntry mapEntry ) { return ( super . checkEntryNotValid ( mapEntry ) || mapEntry . getKey ( ) instanceof ThreadIdentifier ) ; }
this method is over - ridden since we do not want gii of threadidentifier objects to happen
