--- old/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest02.java	2020-02-06 19:34:41.711462923 +0100
+++ new/test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest02.java	2020-02-06 19:34:41.552462937 +0100
@@ -28,7 +28,7 @@
  *          test forces debuggee application eat ~70% of heap and runs jstat.
  *          jstat should show actual usage of old gen (OC/OU ~= old gen usage).
  * @requires vm.opt.ExplicitGCInvokesConcurrent != true
- * @requires vm.gc != "Z"
+ * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  * @modules java.base/jdk.internal.misc
  * @library /test/lib
  * @library ../share