--- a/src/hotspot/share/gc/shared/workgroup.cpp	Thu May 09 14:28:30 2019 +0200
+++ b/src/hotspot/share/gc/shared/workgroup.cpp	Fri May 10 09:05:29 2019 -0400
@@ -318,6 +318,8 @@
   st->cr();
 }
 
+void AbstractGangWorker::print() const { print_on(tty); }
+
 WorkData GangWorker::wait_for_task() {
   return gang()->dispatcher()->worker_wait_for_task();
 }