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diff --git a/libjava/java/nio/channels/DatagramChannel.java b/libjava/java/nio/channels/DatagramChannel.java
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+++ b/libjava/java/nio/channels/DatagramChannel.java
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+/* DatagramChannel.java -- 
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.nio.channels;
+
+import java.io.IOException;
+import java.net.DatagramSocket;
+import java.net.SocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.spi.AbstractSelectableChannel;
+import java.nio.channels.spi.SelectorProvider;
+
+/**
+ * @since 1.4
+ */
+public abstract class DatagramChannel
+  extends AbstractSelectableChannel
+  implements ByteChannel, ScatteringByteChannel, GatheringByteChannel
+{
+  /**
+   * Initializes the channel.
+   */
+  protected DatagramChannel (SelectorProvider provider)
+  {
+    super (provider);
+  }
+
+  /**
+   * Opens a datagram channel.
+   */
+  public static DatagramChannel open () throws IOException
+  {
+    return SelectorProvider.provider ().openDatagramChannel ();
+  }
+  
+  /**
+   * Reads data from this channel.
+   */
+  public final long read (ByteBuffer[] dsts) throws IOException
+  {
+    long b = 0;
+    
+    for (int i = 0; i < dsts.length; i++)
+      b += read (dsts[i]);
+    
+    return b;
+  }
+  
+  /**
+   * Writes data to this channel.
+   */
+  public final long write (ByteBuffer[] srcs)
+  {
+    long b = 0;
+    
+    for (int i = 0;i < srcs.length; i++)
+      b += write (srcs[i]);
+    
+    return b;
+  }
+    
+  /**
+   * Connects this channel's socket.
+   */
+  public abstract DatagramChannel connect (SocketAddress remote);
+
+  /**
+   * Disonnects this channel's socket.
+   */
+  public abstract DatagramChannel disconnect ();
+
+  /**
+   * Tells whether or not this channel's socket is connected.
+   */
+  public abstract boolean isConnected ();
+  
+  /**
+   * Reads data from this channel.
+   */
+  public abstract int read (ByteBuffer dst);
+  
+  /**
+   * Reads data from this channel.
+   */
+  public abstract long read (ByteBuffer[] dsts, int offset, int length);
+ 
+  /**
+   * Receives a datagram via this channel.
+   */
+  public abstract SocketAddress receive (ByteBuffer dst);
+ 
+  /**
+   * Sends a datagram via this channel.
+   */
+  public abstract int send (ByteBuffer src, SocketAddress target);
+ 
+  /**
+   * Retrieves the channel's socket.
+   */
+  public abstract DatagramSocket socket ();
+  
+  /**
+   * Writes data to this channel.
+   */
+  public abstract int write (ByteBuffer src);
+  
+  /**
+   * Writes data to this channel.
+   */
+  public abstract long write (ByteBuffer[] srcs, int offset, int length);
+
+  /**
+   * Retrieves the valid operations for this channel.
+   */
+  public final int validOps ()
+  {
+    return SelectionKey.OP_READ | SelectionKey.OP_WRITE;
+  }    
+}