--- a/src/hotspot/share/gc/parallel/psTasks.hpp	Wed May 01 12:41:26 2019 -0400
+++ b/src/hotspot/share/gc/parallel/psTasks.hpp	Wed May 01 12:31:29 2019 -0700
@@ -61,6 +61,7 @@
     management            = 7,
     jvmti                 = 8,
     code_cache            = 9
+    JVMCI_ONLY(COMMA jvmci = 10)
   };
  private:
   RootType _root_type;