4.0.0 org.library service-provider-interface pom 1.0-SNAPSHOT library-client library-service-provider classics-library computer-science-library Library Service Provider Example UTF-8 1.8 1.8 install org.apache.maven.plugins maven-compiler-plugin 3.8.1 1.8 1.8 org.apache.maven.plugins maven-resources-plugin 3.2.0 UTF-8