How can I run simultaneously a web service and a servlet in the same web app ?? I created the project, created a test web service (that listens in http://localhost:9000/HelloWorld) which works fine, but when I created a servlet in the same project, I can't test it from a browser.
This sounds like a configuration problem in your deployment descriptor (i.e. web.xml) file. We would need to see that file to assist you.