tree 1b86f631dbf6669a10947a83cd57c3a6f636562c
parent a4fe26f494ca77e93b58478e322f6dbbc99f6f22
author Chih-Hung Hsieh <chh@google.com> 1567573877 -0400
committer Chih-hung Hsieh <chh@google.com> 1567617468 +0000

Fix Java coding style warnings.

* Use boolean instead of Boolean.
* Call add() and check result instead of contains() and add().
* Call Paths.get(dir, file) instead of Paths.get(file_path).

Change-Id: I26a40b24614d8fab4f8e0776dcde4cb1c7d1af4d