Merge branch 'stable-2.16'

* stable-2.16:
  SshCommandsIT: Add coverage of the "kill" and "ps" commands
  KillCommand: argument value should not be final
  Update git submodules
  AbstractQueryChangesTest: Test visibleto predicate with a group
  Fix invalid json example in POST access endpoint (remove array)
  ElasticV7QueryChangesTest: Close indices after test
  Upgrade Testcontainers to 1.10.2 and use ElasticsearchContainer

Change-Id: I1370945fa85fc2fdcbaa58b5109fd30c0d72115c
tree: fd247dfc1de68ea8b9bce1773bb354fa835c1e05
  1. java/
  2. javatests/