I may be the only person who was unaware of this. If, please be kind
I am not a big java app user but the few I do use have long annoyed me because the double-click speed is different than that used by my other X apps, and always way too fast! This makes it difficult to navigate file dialogs, etc. I have looked for a solution off and on without success... until now!
I found a long explanation of the problem and why the fix is so obscure but I leave that to the scholarly among you and just offer the solution:
In ~/.Xdefaults (or other suitable X config read at X startup) add...
...where the number is double click time in ms.
This only affects java apps and will not change your non-java click speeds.
Hope this helps someone as much as it helped me!
And Happy New Year to all!