--- old/src/hotspot/share/prims/jniCheck.cpp	2017-12-10 00:36:35.934971682 -0500
+++ new/src/hotspot/share/prims/jniCheck.cpp	2017-12-10 00:36:33.842852518 -0500
@@ -826,7 +826,10 @@
     }
     jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
     if (result == JNI_OK) {
-      add_planned_handle_capacity(thr->active_handles(), capacity);
+      // increase local ref capacity if needed
+      if ((size_t)capacity > thr->active_handles()->get_planned_capacity()) {
+        add_planned_handle_capacity(thr->active_handles(), capacity);
+      }
     }
     functionExit(thr);
     return result;