--- /dev/null	2018-09-16 08:14:05.604314476 -0700
+++ new/src/jdk.net/linux/classes/jdk/internal/net/rdma/RdmaPollSelectorProvider.java	2018-10-05 14:14:44.853757049 -0700
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2018, 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 jdk.internal.net.rdma;
+
+import java.io.IOException;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+import java.nio.channels.spi.AbstractSelector;
+import java.nio.channels.spi.SelectorProvider;
+import sun.nio.ch.SelectorProviderImpl;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+public class RdmaPollSelectorProvider
+    extends SelectorProviderImpl
+{
+    private static final Object lock = new Object();
+    private static SelectorProvider provider = null;
+
+    private static PlatformRdmaPollSelectorProvider pPollSelectorProvider =
+            PlatformRdmaPollSelectorProvider.get();
+
+    public static SelectorProvider provider() {
+        synchronized (lock) {
+            if (provider != null)
+                return provider;
+            return AccessController.doPrivileged(
+                new PrivilegedAction<>() {
+                    public SelectorProvider run() {
+                            provider = new RdmaPollSelectorProvider();
+                            return provider;
+                        }
+                    });
+        }
+    }
+
+    public AbstractSelector openSelector() throws IOException {
+        return pPollSelectorProvider.openSelector(this);
+    }
+
+    public SocketChannel openSocketChannel() throws IOException {
+        return pPollSelectorProvider.openSocketChannel(this);
+    }
+
+    public ServerSocketChannel openServerSocketChannel() throws IOException {
+        return pPollSelectorProvider.openServerSocketChannel(this);
+    }
+
+    static class PlatformRdmaPollSelectorProvider {
+
+        @SuppressWarnings("unchecked")
+        private static PlatformRdmaPollSelectorProvider newInstance(String cn) {
+            Class<PlatformRdmaPollSelectorProvider> c;
+            try {
+                c = (Class<PlatformRdmaPollSelectorProvider>)Class.forName(cn);
+                return c.getConstructor(new Class<?>[] {}).newInstance();
+            } catch (ReflectiveOperationException x) {
+                throw new AssertionError(x);
+            }
+        }
+
+        private static PlatformRdmaPollSelectorProvider create() {
+            String osname = AccessController.doPrivileged(
+                    new PrivilegedAction<String>() {
+                        public String run() {
+                            return System.getProperty("os.name");
+                        }
+                    });
+            if ("Linux".equals(osname))
+                return newInstance("jdk.internal.net.rdma.LinuxRdmaPollSelectorProvider");
+            return new PlatformRdmaPollSelectorProvider();
+        }
+
+        private static final PlatformRdmaPollSelectorProvider instance = create();
+
+        static PlatformRdmaPollSelectorProvider get() {
+            return instance;
+        }
+   
+        public AbstractSelector openSelector(RdmaPollSelectorProvider sp) 
+                throws IOException {
+            throw new UnsupportedOperationException("unsupported socket operation");
+        }
+
+        public SocketChannel openSocketChannel(RdmaPollSelectorProvider sp)
+                throws IOException {
+            throw new UnsupportedOperationException("unsupported socket operation");
+        }
+
+        public ServerSocketChannel openServerSocketChannel(RdmaPollSelectorProvider sp)
+                throws IOException {
+            throw new UnsupportedOperationException("unsupported socket operation");
+        }
+    }
+}