RFR: JDK-8184770: JDWP support for IPv6

[Chris Hegarty]

Alex,

On 29/03/2019 22:07, Alex Menkov wrote:
> (added net-dev as suggested by Alan)
> 
> Net gurus, please assist in reviewing socket-related code.
> 
> New webrev:
> http://cr.openjdk.java.net/~amenkov/IPv6/webrev.01/

Specifically on SocketTransportService.java. What Arthur has
proposed is better ( changing to lastIndexOf alone is not
sufficient ). Or is your assumption that the IPv6 literal is
not enclosed in square brackets?

If keeping Arthur's `static class HostPort` please make the
fields final.

 >> Would it make sense to support the preference properties?
 >>    java.net.preferIPv4Stack
 >>    java.net.preferIPv6Addresses

I'm not sure about this, especially given the property name
prefixes. I need to think a little more on it.

There is quite a bit of new native code, is it possible to
rewrite any of this in Java, e.g. reading of the system
properties ( if that is to remain )?

-Chris.