Move to Java 8.

Sync all Ruby plugins to Java 8 level.

Change-Id: I33bb3144ae483c6bc6b4818f6fe917221e7ba6b9
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
36 files changed
tree: 23a9660b5c70e5851f4107eda98398a3e25c5eae
  1. features/
  2. plugins/
  3. pom.xml
  4. tests/
  5. update.site/