--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/memory/referenceProcessorStats.hpp	Wed Jun 19 11:02:10 2013 +0100
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2012 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_MEMORY_REFERENCEPROCESSORSTATS_HPP
+#define SHARE_VM_MEMORY_REFERENCEPROCESSORSTATS_HPP
+
+#include "utilities/globalDefinitions.hpp"
+
+class ReferenceProcessor;
+
+// ReferenceProcessorStats contains statistics about how many references that
+// have been traversed when processing references during garbage collection.
+class ReferenceProcessorStats {
+  size_t _soft_count;
+  size_t _weak_count;
+  size_t _final_count;
+  size_t _phantom_count;
+
+ public:
+  ReferenceProcessorStats() :
+    _soft_count(0),
+    _weak_count(0),
+    _final_count(0),
+    _phantom_count(0) {}
+
+  ReferenceProcessorStats(size_t soft_count,
+                          size_t weak_count,
+                          size_t final_count,
+                          size_t phantom_count) :
+    _soft_count(soft_count),
+    _weak_count(weak_count),
+    _final_count(final_count),
+    _phantom_count(phantom_count)
+  {}
+
+  size_t soft_count() const {
+    return _soft_count;
+  }
+
+  size_t weak_count() const {
+    return _weak_count;
+  }
+
+  size_t final_count() const {
+    return _final_count;
+  }
+
+  size_t phantom_count() const {
+    return _phantom_count;
+  }
+};
+#endif