RFR(s): 8228580: DnsClient TCP socket timeout

[Pavel Rappo]

Here's the latest webrev accumulating all the changes we've discussed so far:

    http://cr.openjdk.java.net/~prappo/8228580/webrev.03/

If people are okay with that I will proceed to creating a CSR.

> On 12 Sep 2019, at 20:06, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> On 12/09/2019 12:41, Chris Hegarty wrote:
>> Here is an initial attempt to document these timeout/retry properties. It’s effectively the wording lifted from the tech notes [1], with “UDP” removed.
> Thanks, this look and dropping the reference to "UDP" make sense.
> 
> One minor nit is that "are relevant to the DNS provider" might be better worded as "may be used when creating the initial context". This will fit nicely if/when someone adds a description to the @provides tag. At some point I hope the other properties can be used too but that is beyond the scope of JDK-8228580.
> 
> -Alan