4.0.0 vs cloud 1.0-SNAPSHOT war vs parent 1.0-SNAPSHOT javax.servlet javax.servlet-api 4.0.1 provided com.google.cloud.tools appengine-maven-plugin 2.7.0 org.eclipse.jetty jetty-maven-plugin 10.0.24 org.apache.maven.plugins maven-war-plugin 3.4.0