stream() / parallelStream() methods

Kevin Bourrillion kevinb at
Fri Feb 8 15:25:19 PST 2013

On Fri, Feb 8, 2013 at 3:24 PM, Brian Goetz <brian.goetz at> wrote:

 (Tangentially, I would really love to drop parallelStream() and let
>> people call stream().parallel(). But I haven't managed to scour the
>> archives to find if that argument's already suitably played out.)
> Direct version is more performant, in that it requires less wrapping (to
> turn a stream into a parallel stream, you have to first create the
> sequential stream, then transfer ownership of its state into a new Stream.)

But really a lot of *work* has already happened by then?

Kevin Bourrillion | Java Librarian | Google, Inc. | kevinb at

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