--- a/src/hotspot/share/classfile/systemDictionary.cpp	Fri Aug 16 09:18:41 2019 +0200
+++ b/src/hotspot/share/classfile/systemDictionary.cpp	Tue Aug 06 10:48:21 2019 +0200
@@ -2154,7 +2154,7 @@
       // NOTE that we must only do this when the class is initally
       // defined, not each time it is referenced from a new class loader
       if (oopDesc::equals(k->class_loader(), class_loader())) {
-        k->set_prototype_header(markOopDesc::biased_locking_prototype());
+        k->set_prototype_header(markWord::biased_locking_prototype());
       }
     }