This sample displays what's going on in your app. It dumps the environment and lots more.
See the Google App Engine standard environment documentation for more detailed instructions.
Use either:
gcloud initgcloud auth application-default login
$ mvn appengine:run
$ mvn appengine:deploy
This small example application demonstrates the use of the App Engine Socket API to query a Whois server.
To build, install maven, then run mvn package.
You can run the local dev app server via mvn appengine:devserver and deploy via mvnappengine:update.