10.7.4, MacBook Pro, 2.2 Intel Core i7

    Sep  7 10:29:14 wwd2-robert Foreman[3030]: 15.000000Sep  7 10:29:20 wwd2-robert Foreman[3030]: Exception detected while handling key input.
    Sep  7 10:29:20 wwd2-robert Foreman[3030]: -[__NSCFDictionary setObject:forKey:]: mutating method sent to immutable object
    Sep  7 10:29:20 wwd2-robert Foreman[3030]: (
        0   CoreFoundation                      0x00007fff8dd9df56 __exceptionPreprocess + 198 
        1   libobjc.A.dylib                     0x00007fff94046d5e objc_exception_throw + 43
        2   CoreFoundation                      0x00007fff8dd9dd8a +[NSException raise:format:arguments:] + 106
        3   CoreFoundation                      0x00007fff8dd9dd14 +[NSException raise:format:] + 116
        4   CoreFoundation                      0x00007fff8dd5abd0 -[__NSCFDictionary setObject:forKey:] + 96 
        5   Foreman                             0x0000000100002bf2 -[AppGroupController saveName] + 103
        6   Foreman                             0x0000000100002c5f -[AppGroupController control:textShouldEndEditing:] + 17
        7   AppKit                              0x00007fff8e83d5ff -[NSTextField textShouldEndEditing:] + 236
        8   AppKit                              0x00007fff8e89f0ca -[NSTextView(NSSharing) resignFirstResponder] + 426
        9   AppKit                              0x00007fff8e38a429 -[NSWindow makeFirstResponder:] + 429
        10  Foreman                             0x0000000100002cb2 -[AppGroupController control:textView:doCommandBySelector:] + 76
        11  AppKit                              0x00007fff8e83c7ac -[NSTextField textView:doCommandBySelector:] + 105
        12  AppKit                              0x00007fff8e86db48 -[NSTextView doCommandBySelector:] + 160
        13  AppKit                              0x00007fff8e6c6c93 -[NSKeyBindingManager(NSKeyBindingManager_MultiClients) interpretEventAsCommand:forClient:] + 1799
        14  AppKit                              0x00007fff8ea1b6ca -[NSTextInputContext handleEvent:] + 747 
        15  AppKit                              0x00007fff8e8e5298 -[NSView interpretKeyEvents:] + 248        16  AppKit                              0x00007fff8e85dec5 -[NSTextView keyDown:] + 691
        17  AppKit                              0x00007fff8e33b7ac -[NSWindow sendEvent:] + 7430
        18  AppKit                              0x00007fff8e2d4a55 -[NSApplication sendEvent:] + 5593
        19  AppKit                              0x00007fff8e26b0c6 -[NSApplication run] + 555 
        20  AppKit                              0x00007fff8e4e7244 NSApplicationMain + 867
        21  Foreman                             0x0000000100000fe0 start + 52
    )

The syslog also contains a list of all the apps that are running and the list of apps to close, the apps to close include things I didn't add to Foreman and other things like /Applications/Xcode.app/Contents/Library/LoginItems/backgroundinstruments.app which I'm not even running. When it catches an exception it seems to shutdown everything in the "to close" list.