--- old/src/hotspot/share/gc/g1/heapRegionManager.cpp	2020-05-13 10:15:06.876240640 -0700
+++ new/src/hotspot/share/gc/g1/heapRegionManager.cpp	2020-05-13 10:15:06.748235822 -0700
@@ -31,6 +31,7 @@
 #include "gc/g1/heapRegionManager.inline.hpp"
 #include "gc/g1/heapRegionSet.inline.hpp"
 #include "gc/g1/heterogeneousHeapRegionManager.hpp"
+#include "jfr/jfrEvents.hpp"
 #include "logging/logStream.hpp"
 #include "memory/allocation.hpp"
 #include "runtime/atomic.hpp"