I wrote the java beta test on last Thursday... all in all, it seemed a little easier than the 1.2 exam.. I'm not sure if that's because when I wrote the orginal exam I had little programming experience and now I have about 1.5 years? That might make the difference.
Anyway, not a bad exam. Some stuff on assertions, but mostly relating to good programming practice. No IO or AWT!!! Unbelievable. I did feel that they beat garbage collection to death with very long code examples, and a lot of theory questions. The new collections stuff is nothing to worry about, there didn't seem to be any emphasis on these questions. Seemed to be less on casting and converting than I originally remembered on the first exam too. And of course, the regular run of the mill string immutablity-type questions.
Good luck to everyone still to write... now I have to wait 8 weeks for the results!