RobLewis

Initial call to next() before calling hasNext() returns null

2

Just starting to look at this very nice implementation, so apologies if I'm missing something. But it appears that one must always call `hasNext()` before the first call to `next()`...

Addressing the "horror list" of BLE

4

I first saw this a year ago, and don't know if it has been updated since: [Android BLE Issues](https://github.com/iDevicesInc/SweetBlue/wiki/Android-BLE-Issues) In any case, it details some of the many problems programmers...

Is this a replacement for ffserver?

4

I'm trying to set up `ffmpeg` on a Raspberry Pi 3B+ to record 2 USB webcams (`/dev/video0` and `/dev/video1`) to disk and simultaneously stream them live to connected web browsers...

Feature request: allow RetryWhen to count only consecutive errors

2

The semantics would be "Retry when the count of _consecutive_ errors has not exceeded a certain value." The error count would be reset upon a successful `onNext` call. It could...

(As just reported on the Vimeo forum) Often when I try to play Vimeo videos, the screen just says "invalid meta for Vimeo". Clicking "use original player" doesn't help. I...

Are subscribers only called when the bus event type matches the type declared in `onEvent( SomeEvent event )`? What about subtypes of `SomeEvent`?

Problem statement doesn't match solution

1

The "secret Extra Challenge" in Lesson C-1 is made extra challenging by the fact that the problem is stated in terms of Queue 1, while the solution is all about...