public void testNullUser() throws Exception {
SipURI uri1 = sipUri("sip:atlanta.com;transport=TCP?Subject=SIP%20Servlets");
assertNotNull(uri1);
assertNull(uri1.getUser());
assertNotNull(uri1.getHost());
assertEquals("TCP", uri1.getTransportParam());
assertTrue(
uri1.getHeader("Subject") + " is different as SIP Servlets",
uri1.getHeader("Subject").equals("SIP Servlets"));
}
