--- /dev/null	2018-11-27 03:18:47.532777276 -0500
+++ new/src/jdk.net/linux/classes/jdk/internal/net/rdma/LinuxRdmaSocketImpl.java	2018-11-30 08:32:56.188540209 -0500
@@ -0,0 +1,140 @@
+/*
+ * 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.io.InputStream;
+import java.net.SocketException;
+import java.net.InetAddress;
+import java.net.SocketImpl;
+import sun.net.ext.RdmaSocketOptions;
+import static jdk.internal.net.rdma.RdmaSocketImpl.PlatformRdmaSocketImpl;
+
+class LinuxRdmaSocketImpl extends PlatformRdmaSocketImpl
+{
+    private static final UnsupportedOperationException unsupported;
+
+    private static final Void checkSupported() {
+        if (unsupported != null)
+            throw new UnsupportedOperationException(unsupported.getMessage(),
+                    unsupported);
+        else
+            return null;
+    }
+
+    static {
+        java.security.AccessController.doPrivileged(
+            new java.security.PrivilegedAction<>() {
+                public Void run() {
+                    System.loadLibrary("net");
+                    System.loadLibrary("extnet");
+                    return null;
+                }
+            });
+        UnsupportedOperationException uoe = null;
+        try {
+            initProto();
+        } catch (UnsupportedOperationException e) {
+            uoe = e;
+        }
+        unsupported = uoe;
+    }
+
+    public LinuxRdmaSocketImpl() {
+        this(checkSupported());
+    }
+
+    private LinuxRdmaSocketImpl(Void unused) { }
+
+    static final RdmaSocketOptions rdmaOptions =
+            RdmaSocketOptions.getInstance();
+
+    private static volatile boolean checkedRdma;
+    private static volatile boolean isRdmaAvailable;
+
+    boolean isRdmaAvailable() {
+        if (!checkedRdma) {
+            isRdmaAvailable = isRdmaAvailable0();
+            checkedRdma = true;
+        }
+        return isRdmaAvailable;
+    }
+
+    protected synchronized RdmaSocketInputStream getRdmaInputStream(
+            RdmaSocketImpl impl) throws IOException {
+        return new RdmaSocketInputStream(impl);
+    }
+
+    protected synchronized RdmaSocketOutputStream getRdmaOutputStream(
+            RdmaSocketImpl impl) throws IOException {
+        return new RdmaSocketOutputStream(impl);
+    }
+
+    protected void rdmaSocketShutdownInput(RdmaSocketImpl impl, int howto,
+            InputStream socketInputStream) throws IOException {
+        rdmaSocketShutdown(impl, howto);
+        if (socketInputStream != null) {
+            ((RdmaSocketInputStream)socketInputStream).setEOF(true);
+        }
+    }
+
+    static native void initProto() throws UnsupportedOperationException;
+
+    private static native boolean isRdmaAvailable0();
+
+    native void rdmaSocketCreate(RdmaSocketImpl impl, boolean preferIPv6,
+            boolean isServer) throws IOException;
+
+    native void rdmaSocketConnect(RdmaSocketImpl impl, boolean preferIPv6,
+            InetAddress address, int port, int timeout)
+            throws IOException;
+
+    native void rdmaSocketBind(RdmaSocketImpl impl, boolean preferIPv6,
+                               InetAddress address, int port)
+            throws IOException;
+
+    native void rdmaSocketListen(RdmaSocketImpl impl, int count)
+            throws IOException;
+
+    native void rdmaSocketAccept(RdmaSocketImpl impl, SocketImpl s)
+            throws IOException;
+
+    native int rdmaSocketAvailable(RdmaSocketImpl impl) throws IOException;
+
+    native void rdmaSocketClose(RdmaSocketImpl impl, boolean useDeferredClose)
+            throws IOException;
+
+    native void rdmaSocketShutdown(RdmaSocketImpl impl, int howto)
+            throws IOException;
+
+    native void rdmaSocketSetOption(RdmaSocketImpl impl, int cmd, boolean on,
+            Object value) throws SocketException;
+
+    native int rdmaSocketGetOption(RdmaSocketImpl impl, int opt,
+            Object iaContainerObj) throws SocketException;
+
+    native void rdmaSocketSendUrgentData(RdmaSocketImpl impl, int data)
+            throws IOException;
+}