In order to get started, we need to get the activemq-broker feature installed. Reference the activemq:query command, as shown in the following screenshot:

To list out all brokers currently running embedded inside this instance of Karaf, we can simply run the following command:

karaf@root()> activemq:list

This will list out the embedded broker names as follows:

brokerName = amq-broker

This activemq command will invoke the JmxMBeansUtil.getAllBrokers class on the JMX connection and retrieve the name of any broker currently running.