--- old/test/hotspot/jtreg/serviceability/sa/TestHeapDumpForLargeArray.java	2018-11-30 10:21:37.125173324 +0100
+++ new/test/hotspot/jtreg/serviceability/sa/TestHeapDumpForLargeArray.java	2018-11-30 10:21:36.972175099 +0100
@@ -47,6 +47,7 @@
  * @library /test/lib
  * @bug 8171084
  * @requires vm.hasSAandCanAttach & (vm.bits == "64" & os.maxMemory > 8g)
+ * @requires !vm.gc.Shenandoah
  * @modules java.base/jdk.internal.misc
  *          jdk.hotspot.agent/sun.jvm.hotspot
  *          jdk.hotspot.agent/sun.jvm.hotspot.utilities