@since tag missing from DatagramSocket and MulticastSocket methods

> public void connect(InetAddress address, int port)
> public void disconnect()
> public InetAddress getInetAddress()
> public int getPort()
> public synchronized void setSendBufferSize(int size)
> public synchronized int getSendBufferSize() throws SocketException
> public synchronized void setReceiveBufferSize(int size)
> public synchronized int getReceiveBufferSize()

The following 8 methods from DatagramSocket were added in JDK 1.2, but are missing their `@since` tags.

> public void setTimeToLive(int ttl)
> public int getTimeToLive()

Similarly, the 2 methods above from MulticastSocket were added in JDK 1.2. and are missing these tags.