One of the many things I don't understand about this dilemma is the following:

If Mac's version of Java is so bad for your program, then W H Y are you building an application around it?

Maybe it's consolation to you to be able to blame it on somebody else, but it still is, after all, your program and decision on what technology to use.

And to tell us that "they" will be better soon avoids the accountability for your poor implementation of an otherwise good idea.

If it doesn't work, you should change your approach.