diff -r 000000000000 -r f90c822e73f8 test/runtime/NMT/JcmdScale.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/runtime/NMT/JcmdScale.java	Wed Apr 27 01:25:04 2016 +0800
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+/*
+ * @test
+ * @key nmt jcmd
+ * @summary Test the NMT scale parameter
+ * @library /testlibrary
+ * @run main/othervm -XX:NativeMemoryTracking=summary JcmdScale
+ */
+
+import com.oracle.java.testlibrary.*;
+
+public class JcmdScale {
+
+  public static void main(String args[]) throws Exception {
+    ProcessBuilder pb = new ProcessBuilder();
+    OutputAnalyzer output;
+    // Grab my own PID
+    String pid = Integer.toString(ProcessTools.getProcessId());
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=KB"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("KB,  committed=");
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=MB"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("MB,  committed=");
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=GB"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("GB,  committed=");
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "scale=apa"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Incorrect scale value: apa");
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=GB"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("GB,  committed=");
+
+    pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=apa"});
+    output = new OutputAnalyzer(pb.start());
+    output.shouldContain("Incorrect scale value: apa");
+
+  }
+}