4.0.0 informatik-ag-ngl envoy 0.2-beta pom Envoy https://github.com/informatik-ag-ngl/envoy UTF-8 UTF-8 11 11 org.apache.maven.plugins maven-compiler-plugin 3.8.1 org.apache.maven.plugins maven-surefire-plugin 3.0.0-M5 common client server