RFR 8145006 Collections.asLifoQueue(null) doesn't throw NPE as specified

[Stuart Marks]

Hi Paul,

Change looks good. Given that it cannot possibly work if null is passed, 
changing the timing of NPE seems like a reasonably compatible change.

s'marks

On 12/10/15 2:19 AM, Paul Sandoz wrote:
> Hi,
>
> This is a small fix to Collections.asLifoQueue to throw an NPE if the deque passed is null as per the requirements on the class doc [1], rather than throwing an NPE when the Queue is operated on:
>
>    http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8145006-Collections-LIFO-no-NPE/webrev/
>
> It's a small behavioural change (a matter of where the NPE will occur, earlier rather than later if the Queue is operated on), so it will also require a CCC.
>
> Paul.
>
> [1]
> * <p>The methods of this class all throw a {@code NullPointerException}
> * if the collections or class objects provided to them are null.
>