diff -r 5ea48e85ca90 -r ae2cfffe2e64 hotspot/src/share/vm/classfile/javaClasses.cpp
--- a/hotspot/src/share/vm/classfile/javaClasses.cpp	Wed Jul 26 11:27:51 2017 +0200
+++ b/hotspot/src/share/vm/classfile/javaClasses.cpp	Wed Jul 26 10:41:07 2017 -0400
@@ -1082,8 +1082,8 @@
   return name;
 }
 
-Klass* java_lang_Class::array_klass(oop java_class) {
-  Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
+Klass* java_lang_Class::array_klass_acquire(oop java_class) {
+  Klass* k = ((Klass*)java_class->metadata_field_acquire(_array_klass_offset));
   assert(k == NULL || k->is_klass() && k->is_array_klass(), "should be array klass");
   return k;
 }