Phex was built on Java to make it portable to all systems. For platforms that are not as popular we know what kind of asset Java has been for us.
Version 3.0 breaks this by supporting jvms which are only available for four platforms. That's right. If you go to the sun.com site you will see that there are only four platforms available to download Java on.
Your efforts have been sabotaged (even if not purposely). To solve this problem please make 2.8 final bug-fix versions available to download and keep working on 2.8.x mainly for bug fixes.
I was going to say please scrap 3.0.x but on second thought I don't think I can convince people of that.