--- old/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest03.java	2018-06-08 19:43:36.597622712 +0200
+++ new/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest03.java	2018-06-08 19:43:36.332611214 +0200
@@ -27,6 +27,7 @@
  *          Test scenario:
  *          test forces debuggee application call System.gc(), runs jstat and checks that
  *          cause of last garbage collection displayed by jstat (LGCC) is 'System.gc()'.
+ * @requires vm.gc != "Z"
  * @modules java.base/jdk.internal.misc
  * @library /test/lib
  * @library ../share