--- /dev/null	2018-06-04 09:38:58.268495706 -0700
+++ new/src/jdk.net/share/classes/rdma/ch/RdmaServerSocketAdaptor.java	2018-06-04 11:02:35.503275487 -0700
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2000, 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 rdma.ch;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.net.SocketException;
+import java.net.SocketTimeoutException;
+import java.net.StandardSocketOptions;
+import java.nio.channels.IllegalBlockingModeException;
+import java.nio.channels.NotYetBoundException;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+
+class RdmaServerSocketAdaptor
+    extends ServerSocket
+{
+    private final RdmaServerSocketChannelImpl ssc;
+
+    private volatile int timeout;
+
+    public static ServerSocket create(RdmaServerSocketChannelImpl ssc) {
+        try {
+            return new RdmaServerSocketAdaptor(ssc);
+        } catch (IOException x) {
+            throw new Error(x);
+        }
+    }
+
+    private RdmaServerSocketAdaptor(RdmaServerSocketChannelImpl ssc) throws IOException {
+        this.ssc = ssc;
+    }
+
+    public void bind(SocketAddress local) throws IOException {
+        bind(local, 50);
+    }
+
+    public void bind(SocketAddress local, int backlog) throws IOException {
+        if (local == null)
+            local = new InetSocketAddress(0);
+        try {
+            ssc.bind(local, backlog);
+        } catch (Exception x) {
+            RdmaNet.translateException(x);
+        }
+    }
+
+    public InetAddress getInetAddress() {
+        InetSocketAddress local = ssc.localAddress();
+        if (local == null) {
+            return null;
+        } else {
+            return RdmaNet.getRevealedLocalAddress(local).getAddress();
+        }
+    }
+
+    public int getLocalPort() {
+        InetSocketAddress local = ssc.localAddress();
+        if (local == null) {
+            return -1;
+        } else {
+            return local.getPort();
+        }
+    }
+
+    public Socket accept() throws IOException {
+        synchronized (ssc.blockingLock()) {
+            try {
+                if (!ssc.isBound())
+                    throw new NotYetBoundException();
+
+                long to = this.timeout;
+                if (to == 0) {
+                    // for compatibility reasons: accept connection if available
+                    // when configured non-blocking
+                    SocketChannel sc = ssc.accept();
+                    if (sc == null && !ssc.isBlocking())
+                        throw new IllegalBlockingModeException();
+                    return sc.socket();
+                }
+
+                if (!ssc.isBlocking())
+                    throw new IllegalBlockingModeException();
+                for (;;) {
+                    long st = System.currentTimeMillis();
+                    if (ssc.pollAccept(to))
+                        return ssc.accept().socket();
+                    to -= System.currentTimeMillis() - st;
+                    if (to <= 0)
+                        throw new SocketTimeoutException();
+                }
+
+            } catch (Exception x) {
+                RdmaNet.translateException(x);
+                assert false;
+                return null;            // Never happens
+            }
+        }
+    }
+
+    public void close() throws IOException {
+        ssc.close();
+    }
+
+    public ServerSocketChannel getChannel() {
+        return ssc;
+    }
+
+    public boolean isBound() {
+        return ssc.isBound();
+    }
+
+    public boolean isClosed() {
+        return !ssc.isOpen();
+    }
+
+    public void setSoTimeout(int timeout) throws SocketException {
+        this.timeout = timeout;
+    }
+
+    public int getSoTimeout() throws SocketException {
+        return timeout;
+    }
+
+    public void setReuseAddress(boolean on) throws SocketException {
+        try {
+            ssc.setOption(StandardSocketOptions.SO_REUSEADDR, on);
+        } catch (IOException x) {
+            RdmaNet.translateToSocketException(x);
+        }
+    }
+
+    public boolean getReuseAddress() throws SocketException {
+        try {
+            return ssc.getOption(StandardSocketOptions.SO_REUSEADDR).booleanValue();
+        } catch (IOException x) {
+            RdmaNet.translateToSocketException(x);
+            return false;       // Never happens
+        }
+    }
+
+    public String toString() {
+        if (!isBound())
+            return "RdmaServerSocket[unbound]";
+        return "RdmaServerSocket[addr=" + getInetAddress() +
+               ",localport=" + getLocalPort()  + "]";
+    }
+
+    public void setReceiveBufferSize(int size) throws SocketException {
+        // size 0 valid for ServerSocketChannel, invalid for ServerSocket
+        if (size <= 0)
+            throw new IllegalArgumentException("size cannot be 0 or negative");
+        try {
+            ssc.setOption(StandardSocketOptions.SO_RCVBUF, size);
+        } catch (IOException x) {
+            RdmaNet.translateToSocketException(x);
+        }
+    }
+
+    public int getReceiveBufferSize() throws SocketException {
+        try {
+            return ssc.getOption(StandardSocketOptions.SO_RCVBUF).intValue();
+        } catch (IOException x) {
+            RdmaNet.translateToSocketException(x);
+            return -1;          // Never happens
+        }
+    }
+}