Connecting to Activemq with SSL

I'm trying to connect to our ActiveMQ Server as a Message Receiver. First I've tried to connect to a local ActiveMQ, which I downloaded for test purposes. That has worked, the connection worked with the following:

private static String url = ActiveMQConnection.DEFAULT_BROKER_URL;

ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(url);   
Connection connection = connectionFactory.createConnection();

Now I need to connect to our ActiveMQ on a server and I need to use SSL. I already imported our .crt key into Java (cacert) but don't know, how to proceed. I guess I have to change the url to something like this:

url = "failover://ssl://<servername>:61617";

But this alone won't work. Does anyone have any tips, how to get the connection? Thank you in advance!