See <https://builds.apache.org/job/beam_PostCommit_MavenVerify/org.apache.beam$join-library/295/>
------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Apache Beam :: SDKs :: Java :: Extensions :: Join library 0.1.0-incubating-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-checkstyle-plugin/2.17/maven-checkstyle-plugin-2.17.pom
