--- /dev/null	2017-09-19 07:16:30.988293846 -0400
+++ new/test/serviceability/dcmd/DcmdUtil.java	2017-12-19 03:11:27.849348137 -0500
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+import sun.management.ManagementFactoryHelper;
+
+import com.sun.management.DiagnosticCommandMBean;
+
+public class DcmdUtil
+{
+    public static String executeDcmd(String cmd, String ... args) {
+        DiagnosticCommandMBean dcmd = ManagementFactoryHelper.getDiagnosticCommandMBean();
+        Object[] dcmdArgs = {args};
+        String[] signature = {String[].class.getName()};
+
+        try {
+            System.out.print("> " + cmd + " ");
+            for (String s : args) {
+                System.out.print(s + " ");
+            }
+            System.out.println(":");
+            String result = (String) dcmd.invoke(transform(cmd), dcmdArgs, signature);
+            System.out.println(result);
+            return result;
+        } catch(Exception ex) {
+            ex.printStackTrace();
+        }
+        return null;
+    }
+
+    private static String transform(String name) {
+        StringBuilder sb = new StringBuilder();
+        boolean toLower = true;
+        boolean toUpper = false;
+        for (int i = 0; i < name.length(); i++) {
+            char c = name.charAt(i);
+            if (c == '.' || c == '_') {
+                toLower = false;
+                toUpper = true;
+            } else {
+                if (toUpper) {
+                    toUpper = false;
+                    sb.append(Character.toUpperCase(c));
+                } else if(toLower) {
+                    sb.append(Character.toLowerCase(c));
+                } else {
+                    sb.append(c);
+                }
+            }
+        }
+        return sb.toString();
+    }
+
+}