--- a/src/hotspot/share/gc/z/zAttachedArray.inline.hpp	Tue Sep 10 17:07:02 2019 +0200
+++ b/src/hotspot/share/gc/z/zAttachedArray.inline.hpp	Wed Sep 11 09:47:42 2019 +0200
@@ -51,7 +51,7 @@
     _length(length) {}
 
 template <typename ObjectT, typename ArrayT>
-inline uint32_t ZAttachedArray<ObjectT, ArrayT>::length() const {
+inline size_t ZAttachedArray<ObjectT, ArrayT>::length() const {
   return _length;
 }