public static String addAssertion(String testName, IXMLElement xml) {
public static String addAssertion(String testName, IXMLElement xml) throws TestLangRuntimeException {
  public static String addAssertion(String testName, IXMLElement xml) {    Integer suffix = null;    if(!testNumMap.containsKey(testName))      testNumMap.put(testName, new Integer(0));    suffix = (Integer) testNumMap.get(testName);    testNumMap.put(testName, new Integer(suffix.intValue() + 1));    String asstnName = testName + "_Assertion" + suffix.toString();    asstnMap.put(asstnName, new Assertion(asstnName, xml));    return asstnName;  }