--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/memory/metaspaceTracer.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2014, 2015, 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_METASPACETRACER_HPP
+#define SHARE_VM_MEMORY_METASPACETRACER_HPP
+
+#include "memory/allocation.hpp"
+#include "memory/metaspace.hpp"
+#include "memory/metaspaceGCThresholdUpdater.hpp"
+
+class ClassLoaderData;
+
+class MetaspaceTracer : public CHeapObj<mtTracing> {
+  template <typename E>
+  void send_allocation_failure_event(ClassLoaderData *cld,
+                                     size_t word_size,
+                                     MetaspaceObj::Type objtype,
+                                     Metaspace::MetadataType mdtype) const;
+ public:
+  void report_gc_threshold(size_t old_val,
+                           size_t new_val,
+                           MetaspaceGCThresholdUpdater::Type updater) const;
+  void report_metaspace_allocation_failure(ClassLoaderData *cld,
+                                           size_t word_size,
+                                           MetaspaceObj::Type objtype,
+                                           Metaspace::MetadataType mdtype) const;
+  void report_metadata_oom(ClassLoaderData *cld,
+                           size_t word_size,
+                           MetaspaceObj::Type objtype,
+                           Metaspace::MetadataType mdtype) const;
+
+};
+
+#endif // SHARE_VM_MEMORY_METASPACETRACER_HPP