--- old/src/hotspot/share/gc/g1/g1RootProcessor.hpp	2019-09-18 17:51:15.429444728 +0200
+++ new/src/hotspot/share/gc/g1/g1RootProcessor.hpp	2019-09-18 17:51:15.245443704 +0200
@@ -74,16 +74,16 @@
 
   void process_java_roots(G1RootClosures* closures,
                           G1GCPhaseTimes* phase_times,
-                          uint worker_i,
+                          uint worker_id,
                           bool notify_claimed_roots_done = false);
 
   void process_vm_roots(G1RootClosures* closures,
                         G1GCPhaseTimes* phase_times,
-                        uint worker_i);
+                        uint worker_id);
 
   void process_code_cache_roots(CodeBlobClosure* code_closure,
                                 G1GCPhaseTimes* phase_times,
-                                uint worker_i);
+                                uint worker_id);
 
 public:
   G1RootProcessor(G1CollectedHeap* g1h, uint n_workers);