8234805: (dc) Remove JNI upcall from DatagramChannel.receive implementation

[Alan Bateman]

On 26/11/2019 15:12, Daniel Fuchs wrote:
>
> Sorry - but both method have this assert:
>
>  632         assert readLock.isHeldByCurrentThread() && isBlocking();
>
> and the only difference I can see is that one will block indefinitely
> while the other has a timeout.
Right, both methods support the socket adpator, hence blocking mode. The 
first blocks indefinitely so it has to handle EINTR, the second is the 
timed receive case so has to temporarily configure the socket to be 
non-blocking.

-Alan