--- old/src/hotspot/share/runtime/thread.hpp	2019-05-31 08:53:38.000000000 -0700
+++ new/src/hotspot/share/runtime/thread.hpp	2019-05-31 08:53:37.000000000 -0700
@@ -1152,6 +1152,11 @@
  public:
   static jlong* _jvmci_old_thread_counters;
   static void collect_counters(jlong* array, int length);
+
+  bool resize_counters(int current_size, int new_size);
+
+  static bool resize_all_jvmci_counters(int new_size);
+
  private:
 #endif // INCLUDE_JVMCI