--- a/hotspot/src/share/vm/gc/g1/sparsePRT.cpp	Wed Jul 05 11:03:19 2017 -0700
+++ b/hotspot/src/share/vm/gc/g1/sparsePRT.cpp	Thu Jul 06 01:50:26 2017 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2017, 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
@@ -120,8 +120,8 @@
                 "_capacity too large");
 
   // This will put -1 == NullEntry in the key field of all entries.
-  memset(_entries, NullEntry, _num_entries * SparsePRTEntry::size());
-  memset(_buckets, NullEntry, _capacity * sizeof(int));
+  memset((void*)_entries, NullEntry, _num_entries * SparsePRTEntry::size());
+  memset((void*)_buckets, NullEntry, _capacity * sizeof(int));
   _free_list = NullEntry;
   _free_region = 0;
 }