Bug 527309 - Move p2.tests.ui to Java 8

* Bump BREE.
* Enable more warnings.
* Update minor version.
* Generify.
* Add missing Override/Deprecate annotations.
* Try-with-resources.

Change-Id: Ib552796cc41bf978877264fd32078f5c936b774d
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
36 files changed