--- old/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest01.java 2018-06-08 19:43:35.882591689 +0200 +++ new/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest01.java 2018-06-08 19:43:35.609579844 +0200 @@ -32,6 +32,7 @@ * @library /test/lib * @library ../share * @requires vm.opt.ExplicitGCInvokesConcurrent != true + * @requires vm.gc != "Z" * @run main/othervm -XX:+UsePerfData -Xmx128M GcCauseTest01 */ import utils.*;