[lstamour]

Just turn them off or use Android Studio, which I believe still has sane defaults. Help file on this: https://www.jetbrains.com/help/idea/2016.3/disabling-and-ena...

Also, if looking for APIs, and willing to risk having to tweak code later, there are a few "polyfills". For example: https://www.google.ca/amp/s/barta.me/enable-java-8-features-...