--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/net/DatagramPacket/ReuseBuf.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2001 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 4424096
+ *
+ * @summary DatagramPacket spec needs clarification (reuse buf)
+ */
+import java.net.*;
+import java.io.*;
+
+public class ReuseBuf {
+    static String msgs[] = {"Hello World", "Java", "Good Bye"};
+    static int port;
+
+    static class ServerThread extends Thread{
+        DatagramSocket ds;
+        public ServerThread() {
+            try {
+                ds = new DatagramSocket();
+                port = ds.getLocalPort();
+            } catch (Exception e) {
+                throw new RuntimeException(e.getMessage());
+            }
+        }
+
+        public void run() {
+            byte b[] = new byte[100];
+            DatagramPacket dp = new DatagramPacket(b,b.length);
+            while (true) {
+                try {
+                    ds.receive(dp);
+                    String reply = new String(dp.getData(), dp.getOffset(), dp.getLength());
+                    ds.send(new DatagramPacket(reply.getBytes(),reply.length(),
+                                               dp.getAddress(),dp.getPort()));
+                    if (reply.equals(msgs[msgs.length-1])) {
+                        break;
+                    }
+                } catch (Exception e) {
+                    throw new RuntimeException(e.getMessage());
+                }
+            }
+            ds.close();
+        }
+    }
+
+    public static void main(String args[]) throws Exception {
+        ServerThread st = new ServerThread();
+        st.start();
+        DatagramSocket ds = new DatagramSocket();
+        byte b[] = new byte[100];
+        DatagramPacket dp = new DatagramPacket(b,b.length);
+        for (int i = 0; i < msgs.length; i++) {
+            ds.send(new DatagramPacket(msgs[i].getBytes(),msgs[i].length(),
+                                       InetAddress.getByName("LocalHost"),
+                                       port));
+            ds.receive(dp);
+            if (!msgs[i].equals(new String(dp.getData(), dp.getOffset(), dp.getLength()))) {
+                throw new RuntimeException("Msg expected: "+msgs[i] +msgs[i].length()+
+                                           "msg received: "+new String(dp.getData(), dp.getOffset(), dp.getLength())+dp.getLength());
+            }
+        }
+        ds.close();
+        System.out.println("Test Passed!!!");
+    }
+}