usage:

java -jar democlient-1.0-SNAPSHOT-jar-with-dependencies.jar producer “1.1.1.1:9876;2.2.2.2:9876” testtopic

java -jar democlient-1.0-SNAPSHOT-jar-with-dependencies.jar consumer “1.1.1.1:9876;2.2.2.2:9876” testtopic

build release: jar file