Java APIs

guys, I have a raw socket server on a local computer communicating with its client on the same machine. Unfortunately, I can not use Wireshark or Ethereal because they will only works from the local TCP point to the outside world. In my case, all is taken place locally and I want to capture those data between the local raw socket server and its client. I was told that there might be a possibility with using proxy class. Is this possible? If so, could you tell me how?

btw, there is a really cool software that does what I need:
http://www.sstinc.com/winsock.html
Unfortunately, this is only for windows :-), I need a universal solution where I can deploy my tools on any OS. Java is my answer.

Also, I can not split up the client and raw socket server onto separate machines either so I can use Wireshark. This is the way they're developed.

Oh another thing, I'd tried creating a java raw socket client which works but I can only attach to one socket port at a time at 1 TCP port. 1 TCP port is fine but I want to be able to sniff every socket ports, capturing every data packets going back and forward between the server and client. I don't know if proxy class works because I don't have a proxy anywhere installed.

Thanks in advance.