--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.management/windows/classes/com/sun/management/internal/OperatingSystemImpl.java	Fri Apr 17 09:40:02 2015 +0200
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2003, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package com.sun.management.internal;
+
+import com.sun.management.OperatingSystemMXBean;
+import sun.management.BaseOperatingSystemImpl;
+import sun.management.VMManagement;
+
+/**
+ * Implementation class for the operating system.
+ * Standard and committed hotspot-specific metrics if any.
+ *
+ * ManagementFactory.getOperatingSystemMXBean() returns an instance
+ * of this class.
+ */
+class OperatingSystemImpl extends BaseOperatingSystemImpl
+    implements OperatingSystemMXBean {
+
+    // psapiLock is a lock to make sure only one thread loading
+    // PSAPI DLL.
+    private static Object psapiLock = new Object();
+
+    OperatingSystemImpl(VMManagement vm) {
+        super(vm);
+    }
+
+    @Override
+    public long getCommittedVirtualMemorySize() {
+        synchronized (psapiLock) {
+            return getCommittedVirtualMemorySize0();
+        }
+    }
+
+    @Override
+    public long getTotalSwapSpaceSize() {
+        return getTotalSwapSpaceSize0();
+    }
+
+    @Override
+    public long getFreeSwapSpaceSize() {
+        return getFreeSwapSpaceSize0();
+    }
+
+    @Override
+    public long getProcessCpuTime() {
+        return getProcessCpuTime0();
+    }
+
+    @Override
+    public long getFreePhysicalMemorySize() {
+        return getFreePhysicalMemorySize0();
+    }
+
+    @Override
+    public long getTotalPhysicalMemorySize() {
+        return getTotalPhysicalMemorySize0();
+    }
+
+    @Override
+    public double getSystemCpuLoad() {
+        return getSystemCpuLoad0();
+    }
+
+    @Override
+    public double getProcessCpuLoad() {
+        return getProcessCpuLoad0();
+    }
+
+    /* native methods */
+    private native long getCommittedVirtualMemorySize0();
+    private native long getFreePhysicalMemorySize0();
+    private native long getFreeSwapSpaceSize0();
+    private native double getProcessCpuLoad0();
+    private native long getProcessCpuTime0();
+    private native double getSystemCpuLoad0();
+    private native long getTotalPhysicalMemorySize0();
+    private native long getTotalSwapSpaceSize0();
+
+    static {
+        initialize0();
+    }
+
+    private static native void initialize0();
+}