Java frame problem with UNITY only (ubuntu 12.04)

When I instantiate a new Frame (window) with java, all windos loose the ability to recive mouse feedback (I cant click anything inside a frame/windows, except minimization/close). if I create a new frame and set it to "visible", I cant use anything from any java gui. This problem does not happend on KDE, GNOME SHELL, UNITY 2D AND WINDOWS 7, only in UNITY (with default compiz). I test it with Oracle Java 7 and OpenJDK 7 with the same results.

Here's an example that reproduce the problem. Click on the buttons to create new windows, en then try to click randomly in other windows button several times.

https://dl.dropbox.com/u/24797185/test.zip

I am alone with this problem? It usualy start to happend after several jar compile with netbeans... and I have to restart the pc to temporaly fix the problem