tee()

[Kevin Bourrillion]

tee() stands out like a sore thumb.  I'm not surprised that Brian says
"this method is mostly for debugging."

It just feels very, very strange to let the user inject a side-effect into
the middle of their stream somewhere, for mysterious hidden later execution
*maybe*.

If it really must stay, I think I do like "peek" or "observe" over "tee".
But I would love to drop it.

-- 
Kevin Bourrillion | Java Librarian | Google, Inc. | kevinb at google.com