Google is also killing Java with their Java 6 and a half fork, without any public roadmap how future versions are going to be supported.

This will become even worse after Java 9 and 10 get released, specially with the infrastructure API and language changes they bring in.

So if Google keeps their stubbornness, any Java library writer will be faced with support Android Java or official Java dilemma.

And hacks like RetroLamba aren't going to help anyway.

I really don't see any difference in behavior vs what Microsoft did.