Subject subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT);
Subject subj = null; try { subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT); } catch (SubjectNotFoundException e1) {  e1.printStackTrace(); }
  public void testDelAttrs() {    Subject subj = SubjectFactory.getSubject(Constants.rootI, Constants.rootT);    GrouperSession s = GrouperSession.start(subj);    // Create ns0    GrouperStem ns = GrouperStem.create(                       s, Constants.ns0s, Constants.ns0e                     );    // Create g0    GrouperGroup g = GrouperGroup.create(                       s, Constants.g0s, Constants.g0e                     );    try {      g.attribute("displayname", null);      Assert.fail("delete displayname");    } catch (RuntimeException e) {      Assert.assertTrue("delete displayname", true);    }    try {      g.attribute("extension", null);      Assert.fail("delete extension");    } catch (RuntimeException e) {      Assert.assertTrue("delete extension", true);    }    try {      g.attribute("name", null);      Assert.fail("delete name");    } catch (RuntimeException e) {      Assert.assertTrue("delete name", true);    }    try {      g.attribute("stem", null);      Assert.fail("delete stem");    } catch (RuntimeException e) {      Assert.assertTrue("delete stem", true);    }    s.stop();  }