Subject subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT);
Subject subj = null; try { subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT); } catch (SubjectNotFoundException e) {  e.printStackTrace(); }
  public void testFetchNS0() {    Subject subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT);    GrouperSession s = GrouperSession.start(subj);    // Create ns0    GrouperStem ns0 = GrouperStem.create(                         s, Constants.ns0s, Constants.ns0e                       );    // Fetch ns0    GrouperStem ns = GrouperStem.load(                        s, Constants.ns0s, Constants.ns0e                      );    Assert.assertNotNull("ns0 !null", ns);    // Check child stems    Assert.assertTrue("ns0 child stems == 0", ns.stems().size() == 0);    // Check child groups    Assert.assertTrue("ns0 child groups == 0", ns.groups().size() == 0);    s.stop();  }