--- old/src/share/vm/gc/shared/gcCause.hpp	2015-10-08 22:15:44.142388203 +0200
+++ new/src/share/vm/gc/shared/gcCause.hpp	2015-10-08 22:15:44.092389398 +0200
@@ -73,6 +73,8 @@
     _g1_inc_collection_pause,
     _g1_humongous_allocation,
 
+    _shenandoah_init_mark,
+
     _last_ditch_collection,
 
     _dcmd_gc_run,