--- old/test/hotspot/jtreg/TEST.ROOT	2018-06-01 23:13:09.929172358 +0200
+++ new/test/hotspot/jtreg/TEST.ROOT	2018-06-01 23:13:09.683161863 +0200
@@ -45,6 +45,7 @@
     vm.gc.Serial \
     vm.gc.Parallel \
     vm.gc.ConcMarkSweep \
+    vm.gc.Z \
     vm.jvmci \
     vm.emulatedClient \
     vm.cpu.features \