private void writeMessage(SocketEntry entry, SocketChannel sc) throws IOException { byte[] message = entry.nextMessage(); if (message != null) { ByteBuffer buffer = ByteBuffer.wrap(message); sc.write(buffer); if (logger.isDebugEnabled()) { logger.debug( "Send message with length " + message.length + " to " + entry.getPeerAddress() + ": " + new OctetString(message).toHexString()); } sc.register(selector, SelectionKey.OP_READ); } }