DirectBufferAllocTest is unreliable when running with +ExplicitGCInvokesConcurrent, because allocating DBB spreads System.gc() calls all over concurrent GC cycles. It becomes more reliable when running with -ExplicitGCInvokesConcurrent. (Shenandoah defaults to +ExplicitGCInvokesConcurrent, other GCs don't as far as I know.)
Bug: https://bugs.openjdk.java.net/browse/JDK-8249543 Webrev: http://cr.openjdk.java.net/~rkennke/JDK-8249543/webrev.00/ Ok? Thanks, Roman
