After upgrading my ubuntu to 13.04 I noticed that some java windows are not working properly, the rendering is not correct, like it is cut. It seems that is something with the window manager because when a I take a screenshot of the window (alt+prtscr) it looks like it calculates the right size of the window, but it cuts in the wrong place.
I don't know how to report this bug, if someone can help me I can report.
The version of java I'm using is:
java version "1.7.0_17" Java(TM) SE Runtime Environment (build 1.7.0_17-b02) Java HotSpot(TM) Server VM (build 23.7-b01, mixed mode)
Screenshot 1 (the whole screen): http://oi47.tinypic.com/2193q5i.jpg
Screenshot 2 (only the window): http://oi50.tinypic.com/1zyqls.jpg
Thanks in advance!