I am confused and I think I don't have cookie...but actually there is.
So to get the real sent request header, ether check nshttpcookie by yourself,
or simply use the tcp tunnel to dump the request.
java -classpath soap-2.3.jar org.apache.soap.util.net.TcpTunnelGui 8080 yourserver 8080
although soap is out, I still like this tiny tool. XD