RFR [9] 8157166: Update spec to account for platforms that do not support multicast

[Alan Bateman]

On 16/06/2016 16:38, Chris Hegarty wrote:
>> On 16 Jun 2016, at 16:31, Alan Bateman <Alan.Bateman at oracle.com> wrote:
>>
>> On 16/06/2016 16:03, Chris Hegarty wrote:
>>
>>> Some platforms do not support multicasting, but the current spec requires that
>>> it is supported. It seems reasonable to relax this, somewhat, so that multicasting
>>> is effectively optional on these platforms.
>>>
>>> java.net.MulticastSocket.joinGroup and java.nio.channels.MulticastChannel.join
>>> method specifications should be updated to indicate that an exception will be
>>> thrown if invoked on a platform that does not support multicasting.
>>>
>>> http://cr.openjdk.java.net/~chegar/8157166/
>>> https://bugs.openjdk.java.net/browse/JDK-8157166
>>>
>> This looks okay. For MultlicastChannel then "When IGMPv2 is supported then it may" might be clearer as " When IGMPv2 is supported then the operating system may".
> Yes, that is better. Webrev updated in-place.
>
Looks good.