>Psychtoolbox>PsychJava

PsychJavaSwingCleanup - Clean up some internal Java stuff.

The Matlab GUI for releases older than R2025a is based on Java Swing,
which occasionly causes problems when used with Psychtoolbox due to
internal quirks of Swing’s RepaintManager class (“OutOfMemoryError in
Java heap space”). PsychJavaSwingCleanup() forces the RepaintManager to
re-initialize by temporarily setting its screen buffer to zero size.
Calling the garbage collector is probably not really necessary because it
gets called by Matlab at some point anyway. Finally we try to overcome
the problem that the RepaintManager apparently forgets about its dirty
regions while re-initializing.

This routine is closely derived from the one posted in Psychtoolbox forum
message #16043 by user qx1147.

Another possible solution is described and offered in message #13975 by
Davide Tabarelli.