Func0 can transparently implement java.util.concurrent.Callable. #1003
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This change doesn't change the API at all for users of
Func0
, but it makes allFunc0
objects immediately reusable with any JDK API that acceptsCallables
. For example, aFunc0
can now be submitted directly to anExecutorService
for asynchronous execution. It also allows the elimination of a small amount of redundant code within RxJava itself.