Actually the documentation is all Java 8 with no mention of Java 7. If you go to this page: https://cloud.google.com/appengine/docs/ And expand the "Flexible Environment" node on the left the only Java version listed is 8.
Same with app.yaml: https://cloud.google.com/appengine/docs/flexible/java/configuring-your-app-with-app-yaml "You can select the Java 8 / Jetty 9.3 Runtime <https://cloud.google.com/appengine/docs/flexible/java/dev-jetty9> or the Java 8 Runtime <https://cloud.google.com/appengine/docs/flexible/java/dev-java-only>." -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/d043787f-a9a3-4929-a921-06704a04ba8d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
