Guava's `ListenableFuture` can be used as an alternative to `JDeferred`. See [1]. [1] https://github.com/google/guava/wiki/ListenableFutureExplained https://gi

Guava's `ListenableFuture` can be used as an alternative to `JDeferred`. See [1]. [1] https://github.com/google/guava/wiki/ListenableFutureExplained https://github.com/google/guava/wiki/ListenableFutureExplain...