*** old/src/share/vm/gc/g1/heapRegion.cpp	Mon Oct 31 17:46:47 2016
--- new/src/share/vm/gc/g1/heapRegion.cpp	Mon Oct 31 17:46:47 2016

*** 514,524 ****
--- 514,524 ----
  public:
    VerifyStrongCodeRootCodeBlobClosure(const HeapRegion* hr) :
      _hr(hr), _failures(false) {}
  
    void do_code_blob(CodeBlob* cb) {
!     nmethod* nm = (cb == NULL) ? NULL : cb->as_compiled_method()->as_nmethod_or_null();
      if (nm != NULL) {
        // Verify that the nemthod is live
        if (!nm->is_alive()) {
          log_error(gc, verify)("region [" PTR_FORMAT "," PTR_FORMAT "] has dead nmethod " PTR_FORMAT " in its strong code roots",
                                p2i(_hr->bottom()), p2i(_hr->end()), p2i(nm));