diff -r ff74a3c584e5 -r f7cc25dda38a src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp	Tue Jun 11 14:59:46 2019 -0700
+++ b/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp	Tue Jun 11 19:15:31 2019 -0400
@@ -56,12 +56,16 @@
   ShenandoahSerialRoot  _management_root;
   ShenandoahSerialRoot  _system_dictionary_root;
   ShenandoahSerialRoot  _jvmti_root;
-  ShenandoahSerialRoot  _jni_handle_root;
 public:
   ShenandoahSerialRoots();
   void oops_do(OopClosure* cl, uint worker_id);
 };
 
+class ShenandoahJNIHandleRoots : public ShenandoahSerialRoot {
+public:
+  ShenandoahJNIHandleRoots();
+};
+
 class ShenandoahThreadRoots {
 private:
   const bool _is_par;
@@ -126,6 +130,7 @@
 class ShenandoahRootScanner : public ShenandoahRootProcessor {
 private:
   ShenandoahSerialRoots          _serial_roots;
+  ShenandoahJNIHandleRoots       _jni_roots;
   ShenandoahClassLoaderDataRoots _cld_roots;
   ShenandoahThreadRoots          _thread_roots;
   ShenandoahCodeCacheRoots<ITR>  _code_roots;
@@ -152,6 +157,7 @@
 class ShenandoahRootEvacuator : public ShenandoahRootProcessor {
 private:
   ShenandoahSerialRoots          _serial_roots;
+  ShenandoahJNIHandleRoots       _jni_roots;
   ShenandoahClassLoaderDataRoots _cld_roots;
   ShenandoahThreadRoots          _thread_roots;
   ShenandoahWeakRoots            _weak_roots;
@@ -168,6 +174,7 @@
 class ShenandoahRootUpdater : public ShenandoahRootProcessor {
 private:
   ShenandoahSerialRoots          _serial_roots;
+  ShenandoahJNIHandleRoots       _jni_roots;
   ShenandoahClassLoaderDataRoots _cld_roots;
   ShenandoahThreadRoots          _thread_roots;
   ShenandoahWeakRoots            _weak_roots;
@@ -186,6 +193,7 @@
 class ShenandoahRootAdjuster : public ShenandoahRootProcessor {
 private:
   ShenandoahSerialRoots          _serial_roots;
+  ShenandoahJNIHandleRoots       _jni_roots;
   ShenandoahClassLoaderDataRoots _cld_roots;
   ShenandoahThreadRoots          _thread_roots;
   ShenandoahWeakRoots            _weak_roots;