inconsistent naming of Stream.sorted()?

Brian Goetz brian.goetz at
Thu May 23 08:02:05 PDT 2013

Sort of :)

"sorted" is an adjective as well: "This list is sorted".  This is a 
slightly different statement than "this list has been sorted", where 
sorted is used as a past participle.

The intent of this naming choice was that the method would produce a 
stream that has the property of being sorted.  In that way, it is 
consistent with:


Granted, there are two subgroups here; one is sorted and distinct, where 
the named attribute describes the *elements*, and the others describe a 
property of the the *stream*, but I don't really see it as being 

I think calling it "sort" would be much worse.  (Then we'd have to 
rename distinct to something like makeDistinct or removeDuplicates or 

On 5/23/2013 10:40 AM, Gernot Neppert wrote:
> Hi,
> I've been testing build 90 of JDK 1.8, and I came up with this question:
> Stream.sorted is the only method that uses the past participle form of the
> verb that describes it.
> All others, (such as filter, map, etc.) simply use the infinitive.
> Was this a deliberate decision or an an oversight?

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