> On Apr 9, 2018, at 9:17 AM, Xueming Shen <xueming.s...@oracle.com> wrote:
> 
> 
> Paul,
> 
> I don't recall any particular reason why we did Predicate<String> 
> asPredicate() instead
> of Predicate<CharSequence> asPredicate() back 1.8?  mutability?
> 

Hmm… me neither i would like to think it was not an oversight :-)

Mutability should not be an issue *locally* for the predicate implementation 
since it captures no mutable state. I suspect we erred on the side of 
immutability in general, so the predicate would be safe to use if there were 
any concurrent operation going on.

I believe we could revisit this decision (as a separate issue) and a change to 
Predicate<CharSequence> would be both source and binary compatible. However, i 
would be inclined to leave things as they are and stick to the overall 
immutability story.

Paul.

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