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I don't think Android supports even Java 7. Sure, maybe source level but AFAIK invokedynamic and method handles are still missing.

There's a thing called RetroLambda which purports to be a backport of lambdas to older versions of the runtime/platform.

However hopefully now ART is successfully launching they'll go back to upgrading the base foundation and move it beyond Java 6.

I thought there was some work to support Lambdas in ART?

There is a retro-lambda library that allows to write lambda expressions. It is compiled to jdk 6 compatible bytecode though.