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diff --git a/test/java/net/ipv6tests/UdpTest.java b/test/java/net/ipv6tests/UdpTest.java
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+/*
+ * Copyright 2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4868820
+ * @summary IPv6 support for Windows XP and 2003 server
+ */
+
+import java.net.*;
+import java.io.*;
+
+public class UdpTest extends Tests {
+    static DatagramSocket c3, s1, s2, s3;
+    static InetAddress s1peer, s2peer;
+
+    static InetAddress ia4any;
+    static InetAddress ia6any;
+    static Inet6Address ia6addr;
+    static InetAddress ia6bad; /* a global 6to4 IPv6 address, which cant be connected to */
+    static InetAddress ia6rem1;
+    static Inet4Address ia4addr;
+
+    static {
+        try {
+            ia4any = InetAddress.getByName ("0.0.0.0");
+            ia6any = InetAddress.getByName ("::0");
+            try {
+                ia6bad = InetAddress.getByName ("2002:819c:dc29:1:1322:33ff:fe44:5566%net0");
+            } catch (Exception e) {
+                ia6bad = InetAddress.getByName ("2002:819c:dc29:1:1322:33ff:fe44:5566");
+            }
+            //ia6rem1 = InetAddress.getByName ("fe80::a00:20ff:feed:b08d%eth0");
+            //ia6rem1 = InetAddress.getByName ("129.156.220.63");
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        ia6addr = getFirstLocalIPv6Address ();
+        ia4addr = getFirstLocalIPv4Address ();
+    }
+
+    public static void main (String[] args) throws Exception {
+        checkDebug(args);
+        if (ia6addr == null) {
+            System.out.println ("No local IPv6 addresses: exiting now");
+            return;
+        }
+        dprintln ("Local Addresses");
+        dprintln (ia4addr.toString());
+        dprintln (ia6addr.toString());
+        test1 ();
+        test2 ();
+        if (!isLinux()) {
+            test3 ();
+        }
+        test4 ();
+    }
+
+    /* basic UDP connectivity test using IPv6 only and IPv4/IPv6 together */
+
+    static void test1 () throws Exception {
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket ();
+        simpleDataExchange (s1, ia4addr, s2, ia4addr);
+        s1.close (); s2.close ();
+
+        /* IPv6 */
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket ();
+        simpleDataExchange (s1, ia6addr, s2, ia6addr);
+        s1.close (); s2.close ();
+
+        /* IPv6 only */
+        s1 = new DatagramSocket (0, ia6addr);
+        s2 = new DatagramSocket (0, ia6addr);
+        simpleDataExchange (s1, ia6addr, s2, ia6addr);
+        s1.close (); s2.close ();
+
+        /* IPv6 and IPv4 */
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket ();
+        simpleDataExchange (s1, ia6addr, s2, ia4addr);
+        s1.close (); s2.close ();
+
+        /* listen on anyaddr and check receive from IPv4 and IPv6 */
+
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket (0, ia6addr);
+        s3 = new DatagramSocket (0, ia4addr);
+        datagramEcho (s2, s1, ia6addr);
+        datagramEcho (s3, s1, ia4addr);
+        s1.close (); s2.close (); s3.close();
+
+        System.out.println ("Test1: OK");
+    }
+
+    /* check timeouts on receive */
+
+    static void test2 () throws Exception {
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket ();
+        s1.setSoTimeout (4000);
+        long t1 = System.currentTimeMillis();
+        try {
+            s1.receive (new DatagramPacket (new byte [128], 128));
+            throw new Exception ("expected receive timeout ");
+        } catch (SocketTimeoutException e) {
+        }
+        checkTime (System.currentTimeMillis() - t1, 4000);
+
+        /* check data can be exchanged now */
+
+        simpleDataExchange (s1, ia6addr, s2, ia4addr);
+
+        /* double check timeout still works */
+        t1 = System.currentTimeMillis();
+        try {
+            s1.receive (new DatagramPacket (new byte [128], 128));
+            throw new Exception ("expected receive timeout ");
+        } catch (SocketTimeoutException e) {
+        }
+        checkTime (System.currentTimeMillis() - t1, 4000);
+
+        /* check receive works after a delay < timeout */
+
+        final DatagramSocket s = s2;
+        final InetAddress ia6 = ia6addr;
+        final int port = s1.getLocalPort();
+
+        runAfter (2000, new Runnable () {
+            public void run () {
+                try {
+                    DatagramPacket p = new DatagramPacket ("Hello 123".getBytes(), 0, 8, ia6, port);
+                    s.send (p);
+                } catch (Exception e) {}
+            }
+        });
+        t1 = System.currentTimeMillis();
+        s1.receive (new DatagramPacket (new byte [128], 128));
+        checkTime (System.currentTimeMillis() - t1, 2000);
+        s1.close ();
+        s2.close ();
+        System.out.println ("Test2: OK");
+    }
+
+    /* check connected sockets */
+
+    static void test3 () throws Exception {
+        s1 = new DatagramSocket ();
+        s2 = new DatagramSocket ();
+        s1.connect (ia6addr, s2.getLocalPort());
+        datagramEcho (s1, s2, null);
+        s1.close (); s2.close();
+        System.out.println ("Test3: OK");
+    }
+
+    /* check PortUnreachable */
+
+    static void test4 () throws Exception {
+        s1 = new DatagramSocket ();
+        s1.connect (ia6addr, 5000);
+        s1.setSoTimeout (3000);
+        try {
+            DatagramPacket p = new DatagramPacket ("HelloWorld".getBytes(), "HelloWorld".length());
+            s1.send (p);
+            p = new DatagramPacket (new byte[128], 128);
+            s1.receive (p);
+        } catch (PortUnreachableException e) {
+            System.out.println ("Test4: OK");
+            return;
+        } catch (SocketTimeoutException e) {
+            System.out.println ("Test4: failed. Never mind, it's an OS bug");
+        }
+    }
+
+}