--- old/src/hotspot/share/jfr/periodic/jfrPeriodic.cpp	2019-05-02 15:26:59.165423792 -0400
+++ new/src/hotspot/share/jfr/periodic/jfrPeriodic.cpp	2019-05-02 15:26:58.921425282 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -62,7 +62,9 @@
 #include "services/threadService.hpp"
 #include "utilities/exceptions.hpp"
 #include "utilities/globalDefinitions.hpp"
-
+#if INCLUDE_SHENANDOAHGC
+#include "gc/shenandoah/shenandoahJfrSupport.hpp"
+#endif
 /**
  *  JfrPeriodic class
  *  Implementation of declarations in
@@ -577,3 +579,12 @@
   event.set_flushingEnabled(UseCodeCacheFlushing);
   event.commit();
 }
+
+#if INCLUDE_SHENANDOAHGC
+TRACE_REQUEST_FUNC(ShenandoahHeapRegionInformation) {
+  if (UseShenandoahGC) {
+    VM_ShenandoahSendHeapRegionInfoEvents op;
+    VMThread::execute(&op);
+  }
+}
+#endif