I have noticed that Oracle now has released a Java Platform Micro Edition SDK for OSX. It works, it can compile the provided examples and the included phone emulator works too. But how do I compile my own J2ME project from Ant or Eclipse?
There are a lot of related jars but they are all inside the ".app" in the /Applications directory. Eclipse does not like it when I put a toolchain path to inside the ".app".
Have you tried using the EclipseME plugin? It helps integrate JavaME (J2ME) development into Eclipse. Here's a guide for getting it working with Eclipse:
You'll find plenty of documentation and how tos.
If you don't like EclipseME, I personally found Netbeans very good for mobile development:
Also, you weren't specific in your question, but the link you've provided seems to indicate you want to use MTJ. In that case, use this documentation to guide you through: