code: public void load()
      {
          transitives.clear();
          for (final String groupIn : mapGroup.getGroups())
          {
              for (final String groupOut : mapGroup.getGroups())
              {
                  if (!groupIn.equals(groupOut))
                  {
                      findTransitives(groupIn, groupOut);
                  }
              }
          }
      }
docs: Load transitive data.