I think you need to install the J2ME plugin and then just reference the Polish jars in your J2ME project, but I don't have direct experience in this.
You might want to ask that question in the
Java Micro Edition forum. Even though it's an Eclipse issue, you'll find more people experienced in developing with Polish there.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.