Phil, Here is the ClipShapeTest change to fix timeout issue JBS: https://bugs.openjdk.java.net/browse/JDK-8200526 webrev: http://cr.openjdk.java.net/~lbourges/marlin/marlin-8200526.0/
I increased the timeout to 300s per test. I did a jtreg run on my machine (slowed down to 2Ghz) and it passed successfully although the ClipShapeTest finished in 1200s in total: grep elapsed ClipShapeTest.jtr elapsed=1209067 0\:20\:09.067 elapsed time (seconds): 1.131 elapsed time (seconds): 1.129 elapsed time (seconds): 70.291 elapsed time (seconds): 0.0 elapsed time (seconds): 244.185 elapsed time (seconds): 0.0 elapsed time (seconds): 127.729 elapsed time (seconds): 0.0 elapsed time (seconds): 187.525 elapsed time (seconds): 0.0 elapsed time (seconds): 60.818 elapsed time (seconds): 0.0 elapsed time (seconds): 200.825 elapsed time (seconds): 0.0 elapsed time (seconds): 126.312 elapsed time (seconds): 0.0 elapsed time (seconds): 190.248 Regards, Laurent