whatsmars-parent org.hongxi Rocket.S8 4.0.0 whatsmars-zk jar ${project.artifactId} Zookeeper Startup and Demo 3.4.14 org.apache.zookeeper zookeeper ${zookeeper.version} org.apache.curator curator-recipes org.apache.curator curator-test com.101tec zkclient com.google.guava guava