I am not the best to comment on java. I am migrating from Feb TWS because of problems with basket orders. This may have to to with the new basket format, but the old format was working up till last week. I could not find the java version that was mentioned in this thread so I went for the latest beta (build 1.6.0_10-beta-b25). I am running TWS 885.7 and it seems ok from the limited testing I have done.
You should (imo) be using b28 which is the release candidate. It's available here (64bit on the other versions page): https://jdk6.dev.java.net/6u10ea.html
Done, my hot key issue seems to be fixed for the moment anyway. "Trades" window still pops up during log on and I still can't reopen the "Trades" window once it's been closed.
881.3 is working fine since early January, I just use the API mostly. I'll upgrade when they force it.
I upgraded from 885 to 886.5, based on your favorable post. LOL. I wasn't having any problems with 885 by the way. This 886.5 better be good. OldTrader