karaf@root()> feature:repo-add mvn:it.cnr.isti.sensorweaver/sensorweaver-features/2.1.4/xml/features
Adding feature url mvn:it.cnr.isti.sensorweaver/sensorweaver-features/2.1.4/xml/features
karaf@root()> feature:install middleware
karaf@root()> list
START LEVEL 100 , List Threshold: 50
ID | State  | Lvl | Version | Name
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52 | Active |  80 | 2.3.1   | Gson
53 | Active |  80 | 18.0.0  | Guava: Google Core Libraries for Java
54 | Active |  80 | 2.0.6   | Messaging Service API
55 | Active |  90 | 2.0.7   | MQTT Messaging Service
56 | Active |  80 | 2.1.2   | Middleware API
57 | Active |  90 | 2.1.2   | Middleware Service implementation
58 | Active |  80 | 2.5     | Commons Lang
69 | Active |  80 | 1.0.2   | Paho MQTT Client