src/share/vm/gc/g1/g1RemSetSummary.hpp

*** 83,92 ****
--- 83,93 ----
    // subtract all counters from the other summary, and set them in the current
    void subtract_from(G1RemSetSummary* other);
  
    // initialize and get the first sampling
    void initialize(G1RemSet* remset);
+   bool const initialized() { return _rs_threads_vtimes != NULL; }
  
    void print_on(outputStream* out);
  
    double rs_thread_vtime(uint thread) const;