The GPD tutorial is *very* out of date. You should not rely on it too much and only read it to get an idea. Try to use the online demo (which is also out of date in the meantime).
thanks for your comment.can i use jbpm with swing application.i dont understand the folders it creates in the eclipse ide.are there any books which explains jbpm in details.
The process designer doesnt create the process folder, it's used to keep things in order, you should do it. It usually goes /process/my_process