--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/sample/nio/multicast/Sender.java	Sun Aug 31 18:39:01 2008 +0100
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Sun Microsystems nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+import java.nio.channels.*;
+import java.nio.charset.Charset;
+import java.net.*;
+import java.io.IOException;
+import java.util.*;
+
+/**
+ * Sample multicast sender to send a message in a multicast datagram
+ * to a given group.
+ */
+
+public class Sender {
+
+    private static void usage() {
+        System.err.println("usage: java Sender group:port[@interface] message");
+        System.exit(-1);
+    }
+
+    public static void main(String[] args) throws IOException {
+        if (args.length < 2)
+            usage();
+
+        MulticastAddress target = MulticastAddress.parse(args[0]);
+
+        // create socket
+        ProtocolFamily family = StandardProtocolFamily.INET;
+        if (target.group() instanceof Inet6Address)
+            family = StandardProtocolFamily.INET6;
+        DatagramChannel dc = DatagramChannel.open(family).bind(new InetSocketAddress(0));
+        if (target.interf() != null) {
+            dc.setOption(StandardSocketOption.IP_MULTICAST_IF, target.interf());
+        }
+
+        // send multicast packet
+        dc.send(Charset.defaultCharset().encode(args[1]),
+                new InetSocketAddress(target.group(), target.port()));
+        dc.close();
+    }
+
+}