tree 08988d213dde2bc834486170a07a4dd7bd471332
parent cc230597bb66d2c87de036d1a77cf8d6781dc6b2
author David Ostrovsky <david@ostrovsky.org> 1558802446 +0200
committer David Ostrovsky <david@ostrovsky.org> 1559164784 +0200

Fix ClassCanBeStatic warnings

When all error prone warnings are enabled a number of ClassCanBeStatic
bug patterns is reported:

[1] https://errorprone.info/bugpattern/ClassCanBeStatic

Change-Id: I6dfcf9cf03db7001c8ca0f2811cdaa9823d942ea