protected void addContentsInfo(GLMAsset container, String nomen, String typeID, String unit, double massInKGs) {
protected void addContentsInfo(GLMAsset container, String nomen, String typeID, String unit, double massInSTons) {
  protected void addContentsInfo(GLMAsset container, String nomen, String typeID, String unit, double massInKGs) {    List typeIDs = new ArrayList();    List nomenclatures = new ArrayList();    List weights = new ArrayList();    List receivers = new ArrayList();    typeIDs.add(typeID);    nomenclatures.add(nomen);          Mass mass = Mass.newMass(massInKGs, Mass.KILOGRAMS);     weights.add(mass);          receivers.add(unit);        // Contents    NewContentsPG contentsPG =       PropertyGroupFactory.newContentsPG();    contentsPG.setNomenclatures(nomenclatures);    contentsPG.setTypeIdentifications(typeIDs);    contentsPG.setWeights(weights);    contentsPG.setReceivers(receivers);    container.setContentsPG(contentsPG);  }