> On 18 Apr 2018, at 06:35, Felix Yang <felix.y...@oracle.com> wrote:
> 
> Hi Chris and Wyom,
> 
>     fixed as commented.  Updated webrev:
> 
>     http://cr.openjdk.java.net/~xiaofeya/8194260/webrev.01/

Looks good,

-Chris.

> Thanks,
> Felix
> On 2018/4/17 16:25, Chris Hegarty wrote:
>>> On 17 Apr 2018, at 04:34, Felix Yang <felix.y...@oracle.com> wrote:
>>> ...
>>>     http://cr.openjdk.java.net/~xiaofeya/8194260/webrev.00/
>> Thanks for doing this Felix. Mainly looks good. Just a few comments.
>> 
>> The old test runs on systems without IPv4 or IPv6 configured. So
>> I think the Optional `get` should be replaced with `orElse`. Either that
>> or update usage to check for the presence of a value in the Optional.
>> 
>> The old test filters out the loopback address, in order to get “real”
>> addresses. I think we should preserve this behaviour. Other filtering
>> is done in the old tests too, but I don’t think it is really needed.
>> 
>> ---
>> diff --git a/test/jdk/java/net/ipv6tests/Tests.java 
>> b/test/jdk/java/net/ipv6tests/Tests.java
>> --- a/test/jdk/java/net/ipv6tests/Tests.java
>> +++ b/test/jdk/java/net/ipv6tests/Tests.java
>> @@ -178,26 +178,28 @@
>>      }
>>        public static Inet4Address getFirstLocalIPv4Address () {
>> -        return getNetworkConfig().ip4Addresses()
>> -                                 .findFirst()
>> -                                 .get();
>> +        return networkConfig.ip4Addresses()
>> +                             .filter(a -> !a.isLoopbackAddress())
>> +                             .findFirst()
>> +                             .orElse(null);
>>      }
>>        public static Inet6Address getFirstLocalIPv6Address () {
>> -        return getNetworkConfig().ip6Addresses()
>> -                                 .findFirst()
>> -                                 .get();
>> +        return networkConfig.ip6Addresses()
>> +                             .filter(a -> !a.isLoopbackAddress())
>> +                             .findFirst()
>> +                             .orElse(null);
>>      }
>>  +    private static NetworkConfiguration networkConfig = getNetworkConfig();
>> +
>>      private static NetworkConfiguration getNetworkConfig() {
>> -        NetworkConfiguration cfg = null;
>>          try {
>> -            cfg = NetworkConfiguration.probe();
>> +            return  NetworkConfiguration.probe();
>>          } catch (IOException e) {
>>              System.out.println("Failed to probe NetworkConfiguration");
>>              throw new RuntimeException(e);
>>          }
>> -        return cfg;
>>      }
>>  -Chris.
> 

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