The core driver has no dependencies on outside libraries, other than the JDK itself. But for async support we'd like to make it easy to integrate with existing widely used libraries like RxJava.

In scope of this ticket we will create a separate project, async-rxjava-driver, which adapts the core async support in the driver to RxJava's rx.Observable class. This may be the first of several such adapter APIs for different async frameworks.