--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.rmi/share/classes/sun/rmi/transport/proxy/HttpAwareServerSocket.java	Tue Apr 26 21:25:18 2016 -0400
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 1996, 2005, 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 sun.rmi.transport.proxy;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.net.Socket;
+import sun.rmi.runtime.Log;
+
+/**
+ * The HttpAwareServerSocket class extends the java.net.ServerSocket
+ * class.  It behaves like a ServerSocket, except that if
+ * the first four bytes of an accepted socket are the letters "POST",
+ * then it returns an HttpReceiveSocket instead of a java.net.Socket.
+ * This means that the accept method blocks until four bytes have been
+ * read from the new socket's input stream.
+ */
+class HttpAwareServerSocket extends ServerSocket {
+
+    /**
+     * Create a server socket on a specified port.
+     * @param port the port
+     * @exception IOException IO error when opening the socket.
+     */
+    public HttpAwareServerSocket(int port) throws IOException
+    {
+        super(port);
+    }
+
+    /**
+     * Create a server socket, bind it to the specified local port
+     * and listen to it.  You can connect to an annonymous port by
+     * specifying the port number to be 0.  <i>backlog</i> specifies
+     * how many connection requests the system will queue up while waiting
+     * for the ServerSocket to execute accept().
+     * @param port the specified port
+     * @param backlog the number of queued connect requests pending accept
+     */
+    public HttpAwareServerSocket(int port, int backlog) throws IOException
+    {
+        super(port, backlog);
+    }
+
+    /**
+     * Accept a connection. This method will block until the connection
+     * is made and four bytes can be read from the input stream.
+     * If the first four bytes are "POST", then an HttpReceiveSocket is
+     * returned, which will handle the HTTP protocol wrapping.
+     * Otherwise, a WrappedSocket is returned.  The input stream will be
+     * reset to the beginning of the transmission.
+     * In either case, a BufferedInputStream will already be on top of
+     * the underlying socket's input stream.
+     * @exception IOException IO error when waiting for the connection.
+     */
+    public Socket accept() throws IOException
+    {
+        Socket socket = super.accept();
+        BufferedInputStream in =
+            new BufferedInputStream(socket.getInputStream());
+
+        RMIMasterSocketFactory.proxyLog.log(Log.BRIEF,
+            "socket accepted (checking for POST)");
+
+        in.mark(4);
+        boolean isHttp = (in.read() == 'P') &&
+                         (in.read() == 'O') &&
+                         (in.read() == 'S') &&
+                         (in.read() == 'T');
+        in.reset();
+
+        if (RMIMasterSocketFactory.proxyLog.isLoggable(Log.BRIEF)) {
+            RMIMasterSocketFactory.proxyLog.log(Log.BRIEF,
+                (isHttp ? "POST found, HTTP socket returned" :
+                          "POST not found, direct socket returned"));
+        }
+
+        if (isHttp)
+            return new HttpReceiveSocket(socket, in, null);
+        else
+            return new WrappedSocket(socket, in, null);
+    }
+
+    /**
+     * Return the implementation address and implementation port of
+     * the HttpAwareServerSocket as a String.
+     */
+    public String toString()
+    {
+        return "HttpAware" + super.toString();
+    }
+}