diff -r 0bda2308eded -r ad45b3802d4e src/hotspot/share/gc/g1/g1RootProcessor.cpp
--- a/src/hotspot/share/gc/g1/g1RootProcessor.cpp	Wed May 01 12:41:26 2019 -0400
+++ b/src/hotspot/share/gc/g1/g1RootProcessor.cpp	Wed May 01 12:31:29 2019 -0700
@@ -43,6 +43,9 @@
 #include "runtime/mutex.hpp"
 #include "services/management.hpp"
 #include "utilities/macros.hpp"
+#if INCLUDE_JVMCI
+#include "jvmci/jvmci.hpp"
+#endif
 
 void G1RootProcessor::worker_has_discovered_all_strong_classes() {
   assert(ClassUnloadingWithConcurrentMark, "Currently only needed when doing G1 Class Unloading");
@@ -267,6 +270,15 @@
   }
 #endif
 
+#if INCLUDE_JVMCI
+  if (EnableJVMCI) {
+    G1GCParPhaseTimesTracker x(phase_times, G1GCPhaseTimes::JVMCIRoots, worker_i);
+    if (_process_strong_tasks.try_claim_task(G1RP_PS_JVMCI_oops_do)) {
+      JVMCI::oops_do(strong_roots);
+    }
+  }
+#endif
+
   {
     G1GCParPhaseTimesTracker x(phase_times, G1GCPhaseTimes::SystemDictionaryRoots, worker_i);
     if (_process_strong_tasks.try_claim_task(G1RP_PS_SystemDictionary_oops_do)) {