Comment #4 on issue 165 by m...@twifkak.com: Java apps cause xmonad to segfault (X11 FFI issue?) http://code.google.com/p/xmonad/issues/detail?id=165 You can overcome the crash by upgrading your Haskell X11 lib and xmonad. (This bug has been closed for over a year.) Please ask about how to upgrade the X11 lib & xmonad or remove UrgencyHooks on the mailing list or IRC channel. We're a helpful bunch, but let's keep our bug tracker clean(ish). -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings