4.0.0 org.thingsboard 1.2.0 extensions org.thingsboard.extensions extension-kafka jar Thingsboard Server Kafka Extension http://thingsboard.org UTF-8 ${basedir}/../.. ch.qos.logback logback-core provided ch.qos.logback logback-classic provided org.thingsboard extensions-api provided org.thingsboard extensions-core provided org.apache.velocity velocity provided org.apache.velocity velocity-tools provided org.apache.kafka kafka_2.10 maven-assembly-plugin src/assembly/extension.xml make-assembly package single