formatter.tests: Bump to Java 8.

Enable more warnings, save actions and fix them.

Change-Id: I9718a0699495e24736889f705ccd49f7b165b6ed
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
7 files changed
tree: 4f33ab409e27a427d0d98fc6eae1903cd7120094
  1. features/
  2. plugins/
  3. pom.xml
  4. tests/
  5. update.site/