Bug 44663

Trying to use NB/Rave tree as project... then it
happened when scanning trhu, after restart, there
was no paining done about 10 mins. I did thread
dump and saw the painting was stopped because the
ClazzDataNode.getIcon stops it in order to resolve
the icon. The icon getter shouldn't do that.

Instead of this scenario:

1) give me an icon (in AWT),
2) wait (stopping AWT) I first resolve all the
data (meanwhile running the task in other thread,
leaving user out of the game)
3) here is the icon (in AWT)

could you use this one?:

1) give me an icon (in AWT),
2) here is some default one..retuns immediatelly
(in AWT.. user should be fine to see temporary
some icon without the badges etc)
3) start some task in other thread to resolve the
data (in other thread)
4) when the task is finished.. set the resolved
icon.. which should trigger some change event
(scheduled in AWT) and the interested view will
update it accordingly.

I guess this approach should be used also for
other getters for presentation level only (no AWT
stopping should be done there).

New projects looks really very nice.. hope you
will resolve perf issues soon.