tree 579bdef4a1b8773ae25e191066945ed5b1001e77
parent aa529cbeba0a498853d75ce3534f94950e1a7a70
author David Pursehouse <dpursehouse@collab.net> 1477631847 +0900
committer David Pursehouse <dpursehouse@collab.net> 1477641099 +0900

Get rid of dependency on Guava

Since I789f9aa589 removed usage of Guava's Optional, we only have
the dependency on Guava for the following simple utility methods:

  Strings.isNullOrEmpty
  MoreObjects.firstNonNull

Remove the dependency and instead provide own implementations
of those methods.

Change-Id: Iddcc20005004d37dae703fc0522c546a5212575c