Calling a webService in WM from within a Java class

Hello All,
First of all, I would like to thank those who take their time and help!

Given: I have a webService loaded into WM 4.6 (939)
A task to be solved:

  1. Load a .jar file to webMethods
  2. One of the .java files in the jar will have a class which will call a
    webService(the one loaded in WM)
    Please, I need a source code, which will call the webService from the class. So, basically, I just need a source code, which I can paste to a class, which will call a webService.

And, also if anyone could please guide me toward how to upload a .jar file to WM.

Thanks a whole bunch!!!