--- a/src/java.desktop/share/native/libfontmanager/harfbuzz/hb-mutex-private.hh	Tue Dec 05 11:04:42 2017 -0800
+++ b/src/java.desktop/share/native/libfontmanager/harfbuzz/hb-mutex-private.hh	Thu Dec 07 11:55:06 2017 -0800
@@ -68,7 +68,7 @@
 #include <pthread.h>
 typedef pthread_mutex_t hb_mutex_impl_t;
 #define HB_MUTEX_IMPL_INIT      PTHREAD_MUTEX_INITIALIZER
-#define hb_mutex_impl_init(M)   pthread_mutex_init (M, NULL)
+#define hb_mutex_impl_init(M)   pthread_mutex_init (M, nullptr)
 #define hb_mutex_impl_lock(M)   pthread_mutex_lock (M)
 #define hb_mutex_impl_unlock(M) pthread_mutex_unlock (M)
 #define hb_mutex_impl_finish(M) pthread_mutex_destroy (M)