I know Apache makes one the url is
http://java.apache.org It didnt seem very easy to use to me though, so I never tried it.
It ia called Apache JMeter 1.5.1
The 100% pure, swing enabled,
Java URL profiler/analyzer to test your server performance, your
servlet performance, to stress your servlets with heavy multi-threading concurrent requests and much more...
[This message has been edited by Randall Twede (edited March 05, 2001).]