tree bcfe3f9f7c743ab2170460dd05ae50b32aa22d55
parent 70dca51275cda237a1feed1dd35f32b31bc53e5a
author Andrei Korzhevskii <a.korzhevskiy@gmail.com> 1466078207 +0300
committer Andrei Korzhevskii <a.korzhevskiy@gmail.com> 1466413024 +0300

Remove critical checks in StringJoiner.

It was hacked in 4ece80 but now compiler handles
null CharSequence correctly.
Fixes StringJoinerTest to accept JSE instead of NPE
in web mode.

Change-Id: I417de8ab5531f18119e4f39cbe5573e7e01d9720