5034718: better messages for e.g. BindException

[Alan Bateman]

On 11/10/2015 16:16, Arnout Engelen wrote:
> Hi,
>
> Many networking exception messages just channel the low-level errno (e.g.
> 'Address already in use'). It would be really nice if some more context was
> provided - such as, *which* address was already in use.
>
> Attached is a rough sketch of how we could include more detailed
> information in the messages for those failures. I'd love any feedback
> before I dig deeper!
>
Improving exception messages to make it easy to diagnose issues is a 
good area to contribute. One thing to keep in mind is security and being 
careful to not disclosing details such as local addresses when running 
with a security manager.

As regards contributing then the How to contribute page [1] is important 
to read if you haven't contributed before. Also for networking patches 
then the net-dev mailing list would be one of the mailing lists to join.

-Alan

[1] http://openjdk.java.net/contribute/