This test continues to time out even after the fix for JDK-8255916.

----------messages:(7/234)----------
command: main bug6647340
reason: User specified action: run main bug6647340
Mode: othervm
Additional options from @modules: --add-modules java.desktop
Timeout information:
--- Timeout information end.
elapsed time (seconds): 252.131
----------configuration:(3/40)----------
Boot Layer
  add modules: java.desktop

----------System.out:(1/26)----------
Timeout refired 240 times
----------System.err:(0/0)----------