As I previously posted I found a break point problem when running JDK 1.6 update 14. According to the release notes of JDK 1.6 update 16 this problem is now fixed. I'm happy that Sun fixed the break point problem and that is was so important so it got it's "own" update.
I have not yet tried the new JDK but I'm going to. I'm quite eager to try out the new Garbage First (G1) Garbage Collector that was introduced in update 14.