--- old/src/hotspot/share/runtime/mutexLocker.hpp	2019-03-28 11:23:19.000000000 -0700
+++ new/src/hotspot/share/runtime/mutexLocker.hpp	2019-03-28 11:23:19.000000000 -0700
@@ -153,6 +153,10 @@
 extern Monitor* CodeHeapStateAnalytics_lock;     // lock print functions against concurrent analyze functions.
                                                  // Only used locally in PrintCodeCacheLayout processing.
 
+#if INCLUDE_JVMCI
+extern Monitor* JVMCI_lock;                      // Monitor to control initialization of JVMCI
+#endif
+
 // A MutexLocker provides mutual exclusion with respect to a given mutex
 // for the scope which contains the locker.  The lock is an OS lock, not
 // an object lock, and the two do not interoperate.  Do not use Mutex-based