Merge branch 'stable-2.16'

* stable-2.16:
  ElasticV6QueryProjectsTest: Use V6_7
  Elasticsearch: Update elasticsearch-rest-client to 7.0.0

Change-Id: Ib138e90c2a5f01fb09fa4de023369d89da121a05
tree: 2078de569ff414f9e2e23143c090155d5ac666c2
  1. java/
  2. javatests/