diff a/src/hotspot/share/gc/z/zArray.inline.hpp b/src/hotspot/share/gc/z/zArray.inline.hpp
--- a/src/hotspot/share/gc/z/zArray.inline.hpp
+++ b/src/hotspot/share/gc/z/zArray.inline.hpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
@@ -34,13 +34,11 @@
     _size(0),
     _capacity(0) {}
 
 template <typename T>
 inline ZArray<T>::~ZArray() {
-  if (_array != NULL) {
-    FREE_C_HEAP_ARRAY(T, _array);
-  }
+  FREE_C_HEAP_ARRAY(T, _array);
 }
 
 template <typename T>
 inline size_t ZArray<T>::size() const {
   return _size;