RFR 4358774: Add null InputStream and OutputStream

Alan Bateman Alan.Bateman at oracle.com
Fri Dec 8 12:39:19 UTC 2017

On 07/12/2017 22:55, Brian Burkhalter wrote:
> Hi Roger,
> I agree. It does not seem that whatever performance improvement might accrue from not using the Objects methods is offset by the increased code readability in addition to mitigating the risks mentioned in [1]. I have reinstated this approach in http://cr.openjdk.java.net/~bpb/4358774/webrev.02/.
I read through the javadoc again and I think it looks good.

On the implementation then Sergey has a point, the requireNonNull isn't 
needed to check b when b.length is used on the next line. One other nit 
is that the "overridden for efficiency" comment between @Override and 
the method declaration is a distraction. I don't think the comment is 
needed or just put it on the same line or above the @Overview so it 
doesn't get in the way.

The NullXXX tests can be converted to TestNG unit tests if you have cycles.


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