[zanata/zanata-platform] f5e3fe: Fix findbugs issues

[GitHub]

  Branch: refs/heads/single-document-mt
  Home:   https://github.com/zanata/zanata-platform
  Commit: f5e3fe724786979a2a60bb3045de51b28da94d96
      https://github.com/zanata/zanata-platform/commit/f5e3fe724786979a2a60bb3045de51b28da94d96
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2018-09-01 (Sat, 01 Sep 2018)

  Changed paths:
    M server/services/src/main/java/org/zanata/action/VersionHomeAction.java
    M server/services/src/main/java/org/zanata/service/impl/MachineTranslationServiceImpl.java

  Log Message:
  -----------
  Fix findbugs issues



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