RFR: JDK-8068597 - Add error code to to exception condition message resulting from GetAdaptersAddresses function calls

[Chris Hegarty]

Reviewed.

As a temporary measure to get more diagnostic information on a very difficult intermittent failure, 8065078, I agree with this change. Once we get the additional diagnostic information, then we can revisit this code.

-Chris.

On 8 Jan 2015, at 14:16, Mark Sheppard <mark.sheppard at oracle.com> wrote:

> Hi
>    please oblige and review the following additional code to
> src/java.base/windows/native/libnet/NetworkInterface_winXP.c
> 
> webrev: http://cr.openjdk.java.net/~msheppar/8068597/webrev/
> 
> JBS item: https://bugs.openjdk.java.net/browse/JDK-8068597
> 
> which is a temporary addition to assist in the investigation and diagnosis
> of a problem on Windows in the NetworkInterface.getNetworInterfaces() call flow,
> as highlighted in https://bugs.openjdk.java.net/browse/JDK-8065078
> 
> There are intermittent failures of the  GetAdaptersAddresses Windows API function call.
> The extra diagnostic adds the error code to the Exception message thrown.
> 
> regards
> Mark