--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1HeapRegionTraceType.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2016, 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
+ * 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_GC_G1_G1HEAPREGIONTRACETYPE_HPP
+#define SHARE_VM_GC_G1_G1HEAPREGIONTRACETYPE_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/debug.hpp"
+
+class G1HeapRegionTraceType : AllStatic {
+ public:
+  enum Type {
+    Free,
+    Eden,
+    Survivor,
+    StartsHumongous,
+    ContinuesHumongous,
+    Old,
+    Pinned,
+    OpenArchive,
+    ClosedArchive,
+    G1HeapRegionTypeEndSentinel
+  };
+
+  static const char* to_string(G1HeapRegionTraceType::Type type) {
+    switch (type) {
+      case Free:               return "Free";
+      case Eden:               return "Eden";
+      case Survivor:           return "Survivor";
+      case StartsHumongous:    return "Starts Humongous";
+      case ContinuesHumongous: return "Continues Humongous";
+      case Old:                return "Old";
+      case Pinned:             return "Pinned";
+      case OpenArchive:        return "OpenArchive";
+      case ClosedArchive:      return "ClosedArchive";
+      default: ShouldNotReachHere(); return NULL;
+    }
+  }
+};
+
+#endif // SHARE_VM_GC_G1_G1HEAPREGIONTRACETYPE_HPP