459 bool JfrCheckpointManager::is_type_set_required() {

   459 bool JfrCheckpointManager::is_type_set_required() {

   460   return JfrTraceIdEpoch::has_changed_tag_state();

   460   return JfrTraceIdEpoch::has_changed_tag_state();

   461 }

   461 }

   462 

   462 

   463 size_t JfrCheckpointManager::flush_type_set() {

   463 size_t JfrCheckpointManager::flush_type_set() {

   465   size_t elements = 0;

   464   size_t elements = 0;

   466   {

   465   {

   467     JfrCheckpointWriter writer(Thread::current());

   466     JfrCheckpointWriter writer(Thread::current());

   468     // can safepoint here

   467     // can safepoint here

   469     MutexLocker cld_lock(ClassLoaderDataGraph_lock);

   468     MutexLocker cld_lock(ClassLoaderDataGraph_lock);