--- a/src/hotspot/share/runtime/sweeper.cpp	Wed Mar 21 17:09:34 2018 -0400
+++ b/src/hotspot/share/runtime/sweeper.cpp	Wed Mar 21 19:45:24 2018 -0400
@@ -42,6 +42,7 @@
 #include "runtime/sweeper.hpp"
 #include "runtime/thread.inline.hpp"
 #include "runtime/vm_operations.hpp"
+#include "runtime/vmThread.hpp"
 #include "trace/tracing.hpp"
 #include "utilities/events.hpp"
 #include "utilities/ticks.inline.hpp"