JDK-8196298: Add null Reader and Writer

[Brian Burkhalter]

On Feb 1, 2018, at 2:49 PM, Patrick Reinhart <patrick at reini.net> wrote:

>> Am 01.02.2018 um 22:26 schrieb Brian Burkhalter <brian.burkhalter at oracle.com>:
>>> […]
>> 
>> Yes: there is no such lock instance variable for those classes. Probably it would not hurt to add a one liner to each method’s doc as Alan suggested.
>> 
> 
> As my english is not that good,

It’s fine!

> I could need some help for that one liner :-)

How about simply “The {@link #lock object} used to synchronize operations on the returned {@code Reader} is not specified” and similarly for Writer? I’d suggest to put it as a separate paragraph before the @return doc.

Thanks,

Brian