--- old/test/lib/sun/hotspot/gc/GC.java	2018-11-30 21:06:59.095015894 +0100
+++ new/test/lib/sun/hotspot/gc/GC.java	2018-11-30 21:06:58.935017373 +0100
@@ -38,7 +38,8 @@
     ConcMarkSweep(3),
     G1(4),
     Epsilon(5),
-    Z(6);
+    Z(6),
+    Shenandoah(7);
 
     private static final WhiteBox WB = WhiteBox.getWhiteBox();