Assert.fail("failed to add stem: " + e.getMessage());
Assert.fail("failed to add stem '" + extn + "': " + e.getMessage());
  protected static Stem addChildStem(Stem ns, String extn, String displayExtn) {    try {      Stem child = ns.addChildStem(extn, displayExtn);      Assert.assertNotNull("child !null", child);      Assert.assertTrue("added child stem", true);      Assert.assertTrue(        "child stem instanceof Stem",         child instanceof Stem      );      Assert.assertNotNull("child uuid !null", child.getUuid());      Assert.assertTrue("child has uuid", !child.getUuid().equals(""));      Assert.assertTrue(        "parent stem", child.getParentStem().equals(ns)      );      return child;    }    catch (Exception e) {      Assert.fail("failed to add stem: " + e.getMessage());    }    throw new RuntimeException(Helper.ERROR);  } // protected static Stem addChildStem(ns, extn, displayExtn)