--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/net/SocketOption/ImmutableOptions.java	Thu Mar 03 17:21:08 2016 +0000
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2016, 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.
+ *
+ * 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.
+ */
+
+ /*
+ * @test
+ * @bug 8148609
+ * @run testng/othervm ImmutableOptions
+ * @summary Assert that the set of socket options are immutable
+ */
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.*;
+import java.util.Set;
+
+import org.testng.annotations.BeforeTest;
+import org.testng.annotations.Test;
+
+public class ImmutableOptions {
+
+    @BeforeTest
+    void setupServerSocketFactory() throws IOException {
+        ServerSocket.setSocketFactory(new ServerSocketImplFactory());
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void socketThrows() throws IOException {
+        CustomSocketImpl impl = new CustomSocketImpl();
+        Socket socket = new CustomSocket(impl);
+        socket.supportedOptions().clear();
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void socketImplThrows() throws IOException {
+        CustomSocketImpl impl = new CustomSocketImpl();
+        impl.supportedOptions().clear();
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void serverSocketThrows() throws IOException {
+        ServerSocket ss = new ServerSocket();
+        ss.supportedOptions().clear();
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void serverSocketImplThrows() throws IOException {
+        ServerSocket ss = new ServerSocket();
+        ServerSocketImplFactory.mostRecentlyCreated.supportedOptions().clear();
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void datagramSocketThrows() throws IOException {
+        CustomDatagramSocketImpl impl = new CustomDatagramSocketImpl();
+        DatagramSocket socket = new CustomDatagramSocket(impl);
+        socket.supportedOptions().clear();
+    }
+
+    @Test(expectedExceptions = UnsupportedOperationException.class)
+    public void datagramSocketImplThrows() throws IOException {
+        CustomDatagramSocketImpl impl = new CustomDatagramSocketImpl();
+        impl.supportedOptions().clear();
+    }
+
+
+    // Socket descendants
+    static class CustomSocket extends Socket {
+        public CustomSocket(SocketImpl impl) throws IOException {
+            super(impl);
+        }
+    }
+
+    static class CustomDatagramSocket extends DatagramSocket {
+        public CustomDatagramSocket(DatagramSocketImpl impl) {
+            super(impl);
+        }
+    }
+
+    static class ServerSocketImplFactory implements SocketImplFactory {
+        static volatile CustomSocketImpl mostRecentlyCreated;
+
+        @Override public SocketImpl createSocketImpl() {
+            return mostRecentlyCreated = new CustomSocketImpl();
+        }
+    }
+
+    // Custom impl's
+    static class CustomSocketImpl extends SocketImpl {
+        // The only method interesting to this test.
+        @Override public Set<SocketOption<?>> supportedOptions() {
+            return super.supportedOptions();
+        }
+
+        public void create(boolean stream) throws IOException { }
+
+        public void connect(String host, int port) throws IOException { }
+
+        public void connect(InetAddress addr, int port) throws IOException { }
+
+        public void connect(SocketAddress addr, int timeout) throws IOException { }
+
+        public void bind(InetAddress host, int port) throws IOException { }
+
+        public void listen(int backlog) throws IOException { }
+
+        public void accept(SocketImpl s) throws IOException { }
+
+        public InputStream getInputStream() throws IOException { return null; }
+
+        public OutputStream getOutputStream() throws IOException { return null; }
+
+        public int available() throws IOException { return 0; }
+
+        public void close() throws IOException { }
+
+        public void sendUrgentData(int data) throws IOException { }
+
+        public Object getOption(int i) throws SocketException { return null; }
+
+        public void setOption(int i, Object o) throws SocketException { }
+    }
+
+    static class CustomDatagramSocketImpl extends DatagramSocketImpl {
+        // The only method interesting to this test.
+        @Override public Set<SocketOption<?>> supportedOptions() {
+            return super.supportedOptions();
+        }
+
+        protected void create() throws SocketException { }
+
+        protected void bind(int lport, InetAddress laddr) throws SocketException { }
+
+        protected void send(DatagramPacket p) throws IOException { }
+
+        protected int peek(InetAddress i) throws IOException { return 0; }
+
+        protected int peekData(DatagramPacket p) throws IOException { return 0; }
+
+        protected void receive(DatagramPacket p) throws IOException { }
+
+        protected void setTTL(byte ttl) throws IOException { }
+
+        protected byte getTTL() throws IOException { return 0; }
+
+        protected void setTimeToLive(int ttl) throws IOException { }
+
+        protected int getTimeToLive() throws IOException { return 0; }
+
+        protected void join(InetAddress inetaddr) throws IOException { }
+
+        protected void leave(InetAddress inetaddr) throws IOException { }
+
+        protected void joinGroup(SocketAddress x, NetworkInterface y)
+            throws IOException { }
+
+        protected void leaveGroup(SocketAddress x, NetworkInterface y)
+            throws IOException { }
+
+        protected void close() { }
+
+        public void setOption(int optID, Object value) throws SocketException { }
+
+        public Object getOption(int optID) throws SocketException { return null; }
+    }
+}