code: @Transient
      public RequirementSummary getSummary()
      {
          RequirementSummary summary = new RequirementSummary();
          for(Reference ref : references)
          {
              if(ref.getLastExecution() != null)
              {
                  summary.addErrors(ref.getLastExecution().getErrors());
                  summary.addException(ref.getLastExecution().hasException());
                  summary.addFailures(ref.getLastExecution().getFailures());
                  summary.addSuccess(ref.getLastExecution().getSuccess());
                  summary.addErrors(ref.getLastExecution().getErrors());
              }
          }
          
          summary.setReferencesSize(references.size());
          return summary;
      }
docs: <p>getSummary.</p>
  
  @return a {@link com.greenpepper.server.domain.RequirementSummary} object.