src/share/vm/gc/shared/gcId.cpp

*** 51,61 ****
  const uint GCId::current_raw() {
    return currentNamedthread()->gc_id();
  }
  
  size_t GCId::print_prefix(char* buf, size_t len) {
!   if (ThreadLocalStorage::is_initialized() && ThreadLocalStorage::thread()->is_Named_thread()) {
      uint gc_id = current_raw();
      if (gc_id != undefined()) {
        int ret = jio_snprintf(buf, len, "GC(%u) ", gc_id);
        assert(ret > 0, "Failed to print prefix. Log buffer too small?");
        return (size_t)ret;
--- 51,62 ----
  const uint GCId::current_raw() {
    return currentNamedthread()->gc_id();
  }
  
  size_t GCId::print_prefix(char* buf, size_t len) {
!   Thread* thread = Thread::current_or_null();
!   if (thread != NULL && thread->is_Named_thread()) {
      uint gc_id = current_raw();
      if (gc_id != undefined()) {
        int ret = jio_snprintf(buf, len, "GC(%u) ", gc_id);
        assert(ret > 0, "Failed to print prefix. Log buffer too small?");
        return (size_t)ret;