--- old/test/hotspot/jtreg/gc/TestSystemGC.java	2018-11-26 21:30:25.418911288 +0100
+++ new/test/hotspot/jtreg/gc/TestSystemGC.java	2018-11-26 21:30:25.264912646 +0100
@@ -34,6 +34,8 @@
  * @run main/othervm -XX:+UseG1GC -XX:+ExplicitGCInvokesConcurrent TestSystemGC
  * @run main/othervm -XX:+UseLargePages TestSystemGC
  * @run main/othervm -XX:+UseLargePages -XX:+UseLargePagesInMetaspace TestSystemGC
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC TestSystemGC
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+ExplicitGCInvokesConcurrent TestSystemGC
  */
 
 /*