src/share/vm/runtime/sweeper.cpp

*** 614,629 ****
        }
  
        // The stack-scanning low-cost detection may not see the method was used (which can happen for
        // flat profiles). Check the age counter for possible data.
        if (UseCodeAging && make_not_entrant && (nm->is_compiled_by_c2() || nm->is_compiled_by_c1())) {
!         MethodCounters* mc = nm->method()->method_counters();
!         if (mc == NULL) {
!           // Sometimes we can get here without MethodCounters. For example if we run with -Xcomp.
!           // Try to allocate them.
!           mc = nm->method()->get_method_counters(Thread::current());
!         }
          if (mc != NULL) {
            // Snapshot the value as it's changed concurrently
            int age = mc->nmethod_age();
            if (MethodCounters::is_nmethod_hot(age)) {
              // The method has gone through flushing, and it became relatively hot that it deopted
--- 614,624 ----
        }
  
        // The stack-scanning low-cost detection may not see the method was used (which can happen for
        // flat profiles). Check the age counter for possible data.
        if (UseCodeAging && make_not_entrant && (nm->is_compiled_by_c2() || nm->is_compiled_by_c1())) {
!         MethodCounters* mc = nm->method()->get_method_counters(Thread::current());
          if (mc != NULL) {
            // Snapshot the value as it's changed concurrently
            int age = mc->nmethod_age();
            if (MethodCounters::is_nmethod_hot(age)) {
              // The method has gone through flushing, and it became relatively hot that it deopted