code: public static void assertResponseNotReceived(String msg, int statusCode, String method,
        long sequenceNumber, MessageListener obj) {
      assertNotNull("Null assert object passed in", obj);
      assertFalse(msg, responseReceived(statusCode, method, sequenceNumber, obj));
    }
docs: Asserts that the given message listener object has not received a response with the indicated
  status code, CSeq method and sequence number. Assertion failure output includes the given
  message text.
  
  @param msg message text to output if the assertion fails.
  @param statusCode The response status code to verify absent (eg, SipResponse.RINGING)
  @param method The CSeq method to verify absent (SipRequest.INVITE, etc.)
  @param sequenceNumber The CSeq sequence number to verify absent
  @param obj The MessageListener object (ie, SipCall, Subscription, etc.).