WFLY-3768 Implement graceful shutdown for MDB's
adding null check for instanceManager
[WFLY-3534] - Transaction is not being shared by different operations within the same thread.
Merge pull request #6419 from pedroigor/WFLY-3534

[WFLY-3534] - Transaction is not being shared by different operations within the same thread.
[WFLY-3534] - Updating code to reflect changes from transaction subsystem.
[WFLY-333][BZ-1126287] add a test for the wait-time statistic
WFLY-3833 Cannot run mixed-domain tests on IPv6 hosts
Merge pull request #6689 from dpospisil/WFLY-3833

WFLY-3833 Cannot run mixed-domain tests on IPv6 hosts
Move metadata aggregation module to web-feature-pack.
WFLY-3837 Add tests for @RolesAllowed use if bean class has superclasses
Merge pull request #6685 from pedroigor/WFLY-3534
Merge pull request #6688 from jmartisk/master-jbqa-10748
Merge pull request #6690 from ssilvert/WFLY-3806-org.jboss.metadata.main
Merge pull request #6693 from soul2zimate/WFLY-3837
Merge pull request #6668 from stuartwdouglas/WFLY-3768
Merge pull request #6678 from The-Alchemist/WFLY-3820