Mac OS X 10.7.4, macmini4,1
Compile and run the attached test, slightly modified from a product version.
Simple "java SwingButtonResizeTest" would show identical big buttons before and after resize and restore to normal size. However if you supply -Dsun.java2d.opengl.fbobject=false flag, restored to the normal size frame would be all garbage which is rather strange as fbobject seems to have no use on OS X.
I hope there is some simple reason (like typo) for that!