diff -r 99a7ebf426f2 -r 24c0a7a7297f jdk/test/com/sun/management/OperatingSystemMXBean/GetProcessCpuLoad.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/management/OperatingSystemMXBean/GetProcessCpuLoad.java	Fri May 06 18:09:33 2011 +0200
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug     7028071
+ * @summary Basic unit test of OperatingSystemMXBean.getProcessCpuLoad()
+ *
+ * @run main GetProcessCpuLoad
+ */
+
+import java.lang.management.*;
+import com.sun.management.OperatingSystemMXBean;
+
+public class GetProcessCpuLoad {
+    public static void main(String[] argv) throws Exception {
+        OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean)
+            ManagementFactory.getOperatingSystemMXBean();
+        double load;
+        for(int i=0; i<10; i++) {
+            load = mbean.getProcessCpuLoad();
+            if((load<0.0 || load>1.0) && load != -1.0) {
+                throw new RuntimeException("getProcessCpuLoad() returns " + load
+                       +   " which is not in the [0.0,1.0] interval");
+            }
+            try {
+                Thread.sleep(200);
+            } catch(InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}