public void removeArguments(String label){
  List<PBArgument> remove=new ArrayList<>();
  for (  PBArgument arg : l_arguments) {
    if (arg.isLabel(label))     remove.add(arg);
  }
  l_arguments.removeAll(remove);
}

public void removeArguments ( String label ) { List < PBArgument > remove = new ArrayList < > ( ) ; for ( PBArgument arg : l_arguments ) { if ( arg . isLabel ( label ) ) remove . add ( arg ) ; } l_arguments . removeAll ( remove ) ; }
removes all argument with the specific label .
