code: public static void assertXpathsEqual(String controlXpath,
                                           Document controlDocument,
                                           String testXpath,
                                           Document testDocument)
          throws XpathException {
          assertXpathEquality(controlXpath, controlDocument, testXpath,
                              testDocument, true);
      }
docs: Assert that the node lists of two Xpaths in two documents are equal
  @param controlXpath
  @param testXpath
  @param controlDocument
  @param testDocument
  @see XpathEngine