--- old/src/hotspot/share/gc/g1/g1CollectedHeap.hpp	2017-10-17 22:53:10.355193564 +0200
+++ new/src/hotspot/share/gc/g1/g1CollectedHeap.hpp	2017-10-17 22:53:10.095185160 +0200
@@ -303,8 +303,6 @@
 
   void trace_heap(GCWhen::Type when, const GCTracer* tracer);
 
-  void process_weak_jni_handles();
-
   // These are macros so that, if the assert fires, we get the correct
   // line number, file, etc.