Merge branch 'stable-2.16' into stable-3.0

Change-Id: I12352f08704fdd88c8f28d44bf08df0660a26c04
* stable-2.16:
  Make the build pipeline fail if cannot post Checks feedback
  Switch to using no-AOP guice distribution
  Bazel: Use canonical_id for artifacts cached by http_file
  Fix for Memory leak in gr-plugin-endpoints
  Documentation: Clarify how to log e2e http details
  Make legacy version of the commit-msg hook available
  commit-msg: Remove obsolete comments
  Upgrade testcontainers to 1.14.0
  Bump asm to version 7.2
  Upgrade guice to 4.2.3
  PostReview: Avoid multiple notifications for existing reviewers
  ChangeApi: Remove deprecated getEdit method
  ChangeApi: Remove useless @Deprecated annotation in NotImplemented
  Plugin API: Remove deprecated draft workflow methods
  ErrorProne: Enable ObjectToString check at ERROR severity
  Project: Add implementation of toString
  Account: Add implementation of toString
  LegacyChangeNoteWrite: Remove unused newIdent method
  PolyGerrit: Document commit-container extension endpoint
  e2e-tests: Make all current scenario names unique
  e2e-tests: Make http request name unique
  e2e-tests: Fix CloneUsingBothProtocols wait times
  e2e-tests: Create/delete ReplayRecordsFromFeeder project
  e2e-tests: Unhardcode ReplayRecordsFromFeeder data
  e2e-tests: Stabilize the ReplayRecordsFromFeeder scenario
  Remove obsolete FindBugs configuration
  Elasticsearch: Remove support for EOL 6.x versions
  REST: Allow to create annotated tag with only CREATE_TAG
  Upgrade recommended version of buildifier to 2.2.1
  Bump Bazel version to 3.0.0
  CreateRefControl: Pass CurrentUser to Reachable

Documentation/licenses.txt

@@ -926,18 +926,6 @@ EXHIBIT A -Mozilla Public License.
 ----
 
 
-[[PublicDomain]]
-PublicDomain
-
-* guice:aopalliance
-
-[[PublicDomain_license]]
-----
-This software has been placed in the public domain by its author(s).
-
-----
-
-
 [[antlr]]
 antlr