#0  0x00007fff82bc3490 in realizeClass ()
#1  0x00007fff82bc354e in realizeClass ()
#2  0x00007fff82bc354e in realizeClass ()
#3  0x00007fff82bc3d17 in _objc_fixupMessageRef ()
#4  0x00007fff82bc5c7f in objc_msgSend_fixup ()
#5  0x00007fff83bfe587 in __CFMachPortPerform ()
#6  0x00007fff83c202cc in CFRunLoopRunSpecific ()
#7  0x00007fff84582bce in RunCurrentEventLoopInMode ()
#8  0x00007fff84582a04 in ReceiveNextEventCommon ()
#9  0x00007fff845828af in BlockUntilNextEventMatchingListInMode ()
#10 0x00007fff8314e420 in _DPSNextEvent ()
#11 0x00007fff8314dd61 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] ()
#12 0x00007fff83147af4 in -[NSApplication run] ()
#13 0x00007fff831148ac in NSApplicationMain ()
#14 0x0000000102880940 in ?? ()