Java elasticsearch client always null

I've recently made the switch from elasticsearch 1.7 to 2.0 and I noticed the way you setup the client has changed. I went through the documentation and for some reason the client is always null. I was wondering if I have set it up correctly.

Here is my code:

    Client client = null;

    try {
        client = TransportClient.builder().build().addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));
    } catch (Exception e) {
        Logger.log(e);
    } finally {
        client.close();
        try {
            conn.close();
        } catch (SQLException e) {
            Logger.log(e);
        }
    }