This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
What you need is a reference MIDP implementation which will run on the platform. It's been years I worked with J2ME (or Java ME as it is now called) and am not really sure I recall this right from memory.
Google to check if something called midlet manager or phone ME is still available.