--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/vm/UptimeTest.java	Fri Jan 30 20:00:57 2015 +0100
@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 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.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.JMXExecutor;
+
+import java.text.NumberFormat;
+import java.text.ParseException;
+
+/*
+ * @test
+ * @summary Test of diagnostic command VM.uptime
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng UptimeTest
+ */
+public class UptimeTest {
+    public void run(CommandExecutor executor) {
+        double someUptime = 1.0;
+        long startTime = System.currentTimeMillis();
+        try {
+            synchronized (this) {
+                /* Loop to guard against spurious wake ups */
+                while (System.currentTimeMillis() < (startTime + someUptime * 1000)) {
+                    wait((int) someUptime * 1000);
+                }
+            }
+        } catch (InterruptedException e) {
+            Assert.fail("Test error: Exception caught when sleeping:", e);
+        }
+
+        OutputAnalyzer output = executor.execute("VM.uptime");
+
+        output.stderrShouldBeEmpty();
+
+        /*
+         * Output should be:
+         * [pid]:
+         * xx.yyy s
+         *
+         * If there is only one line in output there is no "[pid]:" printout;
+         * skip first line, split on whitespace and grab first half
+         */
+        int index = output.asLines().size() == 1 ? 0 : 1;
+        String uptimeString = output.asLines().get(index).split("\\s+")[0];
+
+        try {
+            double uptime = NumberFormat.getNumberInstance().parse(uptimeString).doubleValue();
+            if (uptime < someUptime) {
+                Assert.fail(String.format(
+                        "Test failure: Uptime was less than intended sleep time: %.3f s < %.3f s",
+                        uptime, someUptime));
+            }
+        } catch (ParseException e) {
+            Assert.fail("Test failure: Could not parse uptime string: " +
+                    uptimeString, e);
+        }
+    }
+
+    @Test
+    public void jmx() {
+        run(new JMXExecutor());
+    }
+}