java.lang.OutOfMemoryError: GC overhead limit exceeded
   at sun.awt.X11.XEvent.get_xkey(XEvent.java:43)
   at sun.awt.X11.XWindow.handleKeyPress(XWindow.java:1078)
   at sun.awt.X11.XFocusProxyWindow.handleKeyPress(XFocusProxyWindow.java:81)
   at sun.awt.X11.XBaseWindow.dispatchEvent(XBaseWindow.java:1099)
   at sun.awt.X11.XFocusProxyWindow.dispatchEvent(XFocusProxyWindow.java:73)
   at sun.awt.X11.XBaseWindow.dispatchToWindow(XBaseWindow.java:1066)
   at sun.awt.X11.XToolkit.dispatchEvent(XToolkit.java:565)
   at sun.awt.X11.XToolkit.run(XToolkit.java:674)
   at sun.awt.X11.XToolkit.run(XToolkit.java:595)
   at java.lang.Thread.run(Thread.java:722)