This changeset adds a test to run GCOld with Shenandoah. It also fixes EvilSynyBug with release build by adding -XX:UnlockDiagnosticVMOptions. http://cr.openjdk.java.net/~rkennke/gctests/webrev.00/ Ok? I will also go over other GC tests and adopt tests that are not GC specific to Shenandoah. Roman