--- a/src/hotspot/share/gc/shared/generation.cpp	Fri Aug 16 09:18:41 2019 +0200
+++ b/src/hotspot/share/gc/shared/generation.cpp	Tue Aug 06 10:48:21 2019 +0200
@@ -178,7 +178,7 @@
 }
 
 oop Generation::par_promote(int thread_num,
-                            oop obj, markOop m, size_t word_sz) {
+                            oop obj, markWord m, size_t word_sz) {
   // Could do a bad general impl here that gets a lock.  But no.
   ShouldNotCallThis();
   return NULL;