Thank you Jason for the comments!

On 06.12.2016 20:09, Jason Mehrens wrote:
Ivan,

Will java.util.StringJoiner be modified too?  I assume a nCopies char sequence 
object doesn't pan out performance wise?
I don't think I've seen many such uses of StringJoiner as adding the same sequence several times. I would hesitate to propose an addition to the API without being sure it's going to be used.

With kind regards,
Ivan

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