--- old/test/hotspot/jtreg/gc/arguments/TestVerifyBeforeAndAfterGCFlags.java	2020-02-06 19:34:30.145463935 +0100
+++ new/test/hotspot/jtreg/gc/arguments/TestVerifyBeforeAndAfterGCFlags.java	2020-02-06 19:34:29.978463950 +0100
@@ -28,7 +28,7 @@
  * @summary Runs an simple application (GarbageProducer) with various
          combinations of -XX:{+|-}Verify{After|Before}GC flags and checks that
          output contain or doesn't contain expected patterns
- * @requires vm.gc != "Z"
+ * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  * @modules java.base/jdk.internal.misc
  * @modules java.management
  * @library /test/lib