docs: public Vector<Object> marshallize()
      {
          Vector<Object> parameters = new Vector<Object>();        
          parameters.add(REFERENCE_REQUIREMENT_IDX, requirement.marshallize());
          parameters.add(REFERENCE_SPECIFICATION_IDX, specification.marshallize());
          parameters.add(REFERENCE_SUT_IDX, systemUnderTest.marshallize());
          parameters.add(REFERENCE_SECTIONS_IDX, StringUtils.defaultString(sections));
          
          parameters.add(REFERENCE_LAST_EXECUTION_IDX, lastExecution != null ? lastExecution.marshallize() : Execution.none().marshallize());
          return parameters;
      }