SIGSEGV on Mac OS X when quitting a JavaFX application

I'm running a JavaFX application I wrote; when I exit the application using stage.close() on the primary stage, it crashes with a SIGSEGV fault such as the one pasted below:


#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000000105f1d9da, pid=21390, tid=140735253219680
#
# JRE version: 7.0_05-b05
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.1-b03 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V [libjvm.dylib+0x49a9da]
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/jeff/Projects/workspace/gurps-gmcontrol-screen/hs_err_pid21390.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#