4.0.0 com.example.cloud.auth.samples auth 1.0 auth http://maven.apache.org com.google.cloud.samples shared-configuration 1.0.18 1.8 1.8 UTF-8 com.google.cloud libraries-bom 5.7.0 pom import com.google.cloud google-cloud-storage com.google.auth google-auth-library-appengine 0.20.0 commons-io commons-io 2.7 junit junit 4.13 test