--- old/src/share/vm/gc/g1/g1RootProcessor.hpp	2016-09-01 14:57:59.330315866 +0200
+++ new/src/share/vm/gc/g1/g1RootProcessor.hpp	2016-09-01 14:57:59.166309373 +0200
@@ -81,6 +81,14 @@
                         G1GCPhaseTimes* phase_times,
                         uint worker_i);
 
+  void process_string_table_roots(G1RootClosures* closures,
+                                  G1GCPhaseTimes* phase_times,
+                                  uint worker_i);
+
+  void process_code_cache_roots(CodeBlobClosure* code_closure,
+                                G1GCPhaseTimes* phase_times,
+                                uint worker_i);
+
 public:
   G1RootProcessor(G1CollectedHeap* g1h, uint n_workers);
 
@@ -99,6 +107,13 @@
                          CLDClosure* clds,
                          CodeBlobClosure* blobs);
 
+  // Apply oops, clds and blobs to strongly and weakly reachable roots in the system,
+  // the only thing different from process_all_roots is that we skip the string table
+  // to avoid keeping every string live when doing class unloading.
+  void process_all_roots_no_string_table(OopClosure* oops,
+                                         CLDClosure* clds,
+                                         CodeBlobClosure* blobs);
+
   // Number of worker threads used by the root processor.
   uint n_workers() const;
 };