8231259: (dc) DatagramChannel::disconnect re-binds socket to the wildcard address (macOS)

[Alan Bateman]

On 19/11/2019 11:58, Chris Hegarty wrote:
> :
> For example, if the “repairing” fails to re-bind to the original port then an exception will be thrown from repairSocket. Subsequently, the finally block will attempt to retrieve the local address ( which I guess will also fail with an exception ( Ugh! this will suppress the re-binding exception ) ).
Not quite, Net.localAddress will return the wildcard address and port 0 
to indicate unbound. We could potentially map that to null but I don't 
think we want to encourage anyone to attempt to re-bind when disconnect 
fails. I think we stick with the recommendation in the javadoc to close 
the channel when disconnect fails.

-Alan