a minor refactor to make it easier to extend ConnectionInfo/ConnectionContext without having to change code in the AbstractConnection in the future - such as to support new certificate or security token mechanisms. For background see thread: http://www.nabble.com/Certificate-login-tf2029724.html#a5583011
incubator/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/broker/AbstractConnection.java