Set newStoredProcedures = new TreeSet(new PropertyListSet());
Set newStoredProcedures = new HashSet();
  public void removeStoredProcedure(EOStoredProcedure _storedProcedure) {    myDeletedStoredProcedureNames.add(_storedProcedure.getName());    Set oldStoredProcedures = myStoredProcedures;    Set newStoredProcedures = new TreeSet(new PropertyListSet());    newStoredProcedures.addAll(myStoredProcedures);    newStoredProcedures.remove(_storedProcedure);    myStoredProcedures = newStoredProcedures;    firePropertyChange(EOModel.STORED_PROCEDURES, oldStoredProcedures, myStoredProcedures);    _storedProcedure._setModel(null);  }