diff -r b70281f5146e -r 57dd7b4ba338 src/hotspot/share/memory/metaspace/metaspaceDCmd.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/memory/metaspace/metaspaceDCmd.hpp	Tue Apr 24 18:06:32 2018 +0200
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018, 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_MEMORY_METASPACE_METASPACEDCMD_HPP_
+#define SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_
+
+#include "services/diagnosticCommand.hpp"
+
+class outputStream;
+
+namespace metaspace {
+
+class MetaspaceDCmd : public DCmdWithParser {
+  DCmdArgument<bool> _basic;
+  DCmdArgument<bool> _show_loaders;
+  DCmdArgument<bool> _by_spacetype;
+  DCmdArgument<bool> _by_chunktype;
+  DCmdArgument<bool> _show_vslist;
+  DCmdArgument<bool> _show_vsmap;
+  DCmdArgument<char*> _scale;
+public:
+  MetaspaceDCmd(outputStream* output, bool heap);
+  static const char* name() {
+    return "VM.metaspace";
+  }
+  static const char* description() {
+    return "Prints the statistics for the metaspace";
+  }
+  static const char* impact() {
+      return "Medium: Depends on number of classes loaded.";
+  }
+  static const JavaPermission permission() {
+    JavaPermission p = {"java.lang.management.ManagementPermission",
+                        "monitor", NULL};
+    return p;
+  }
+  static int num_arguments();
+  virtual void execute(DCmdSource source, TRAPS);
+};
+
+} // namespace metaspace
+
+#endif /* SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP_ */