http://cr.openjdk.java.net/~shade/shenandoah/tests-evilsyncbug/webrev.01/ This helped to capture shutdown deadlocks in sh/jdk8u, especially when running EvilSyncBug as the standalone test. The test is time sensitive, and it enjoys competition with other tests, or even itself. Testing: tier3_gc_shenandoah Thanks, -Aleksey