--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/services/diagnosticCommand.hpp	Wed Dec 14 04:30:57 2011 -0800
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2011, 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_SERVICES_DIAGNOSTICCOMMAND_HPP
+#define SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP
+
+#include "runtime/arguments.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "utilities/ostream.hpp"
+#include "runtime/vm_version.hpp"
+#include "runtime/vmThread.hpp"
+#include "runtime/os.hpp"
+#include "services/diagnosticArgument.hpp"
+#include "services/diagnosticCommand.hpp"
+#include "services/diagnosticFramework.hpp"
+
+class HelpDCmd : public DCmd {
+protected:
+  DCmdParser _dcmdparser;
+  DCmdArgument<bool> _all;
+  DCmdArgument<char*> _cmd;
+public:
+  HelpDCmd(outputStream* output, bool heap);
+  static const char* name() { return "help"; }
+  static const char* description() {
+    return "For more information about a specific command use 'help <command>'. "
+           "With no argument this will show a list of available commands. "
+           "'help all' will show help for all commands.";
+  }
+  static const char* impact() { return "Low: "; }
+  static int num_arguments();
+  virtual void parse(CmdLine* line, char delim, TRAPS);
+  virtual void execute(TRAPS);
+  virtual void reset(TRAPS);
+  virtual void cleanup();
+  virtual void print_help(outputStream* out);
+  virtual GrowableArray<const char*>* argument_name_array();
+  virtual GrowableArray<DCmdArgumentInfo*>* argument_info_array();
+};
+
+class VersionDCmd : public DCmd {
+public:
+  VersionDCmd(outputStream* output, bool heap) : DCmd(output,heap) { }
+  static const char* name() { return "VM.version"; }
+  static const char* description() {
+    return "Print JVM version information.";
+  }
+  static const char* impact() { return "Low: "; }
+  static int num_arguments() { return 0; }
+  virtual void parse(CmdLine* line, char delim, TRAPS) { }
+  virtual void execute(TRAPS);
+  virtual void print_help(outputStream* out) { }
+};
+
+#endif // SHARE_VM_SERVICES_DIAGNOSTICCOMMAND_HPP