Java applications with graphical user interfaces still don't play well with compositing window managers such as Compiz or Compiz-Fusion. Frequently the java application window will open, but remain blank. Fortunately, the fix for this is relatively simple. Exporting the variable "AWT_TOOLKIT=MToolkit" before running the jvm will fix this problem. If your java application has a menu entry or a desktop icon, you can make the necessary changes to the properties of the .desktop file by specifying the command as