--- old/test/hotspot/jtreg/serviceability/tmtools/jstat/GcTest01.java	2018-06-01 23:13:20.688631368 +0200
+++ new/test/hotspot/jtreg/serviceability/tmtools/jstat/GcTest01.java	2018-06-01 23:13:20.428620275 +0200
@@ -35,6 +35,7 @@
  * @library /test/lib
  * @library ../share
  * @requires vm.opt.ExplicitGCInvokesConcurrent != true
+ * @requires vm.gc != "Z"
  * @run main/othervm -XX:+UsePerfData -Xmx128M GcTest01
  */
 import utils.*;