--- a/test/hotspot/jtreg/TEST.ROOT	Tue Jun 12 07:52:30 2018 -0700
+++ b/test/hotspot/jtreg/TEST.ROOT	Tue Jun 12 17:40:28 2018 +0200
@@ -46,6 +46,7 @@
     vm.gc.Parallel \
     vm.gc.ConcMarkSweep \
     vm.gc.Epsilon \
+    vm.gc.Z \
     vm.jvmci \
     vm.emulatedClient \
     vm.cpu.features \