Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Upgrade elasticsearch-rest-client to 7.3.1
  Add .gitreview file

Update the newly added .gitreview file to point to stable-2.16.

Change-Id: I9ca52ec3d90dea1b44321be4eb648448abafff1e

.gitreview

@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit-review.googlesource.com
+scheme=https
+project=gerrit.git
+defaultbranch=stable-2.16

Documentation/dev-contributing.txt

@@ -144,6 +144,11 @@ by clicking the 'Obtain Password' link on the
 link:https://gerrit-review.googlesource.com/#/settings/http-password[HTTP
 Password tab of the user settings page].
 
+Alternately, you may use the
+link:https://pypi.org/project/git-review/[git-review] tool to submit changes
+to Gerrit. If you do, it will set up the Change-Id hook and `gerrit` remote
+for you. You will still need to do the HTTP access step.
+
 [[style]]
 === Style
 

Documentation/dev-release.txt

@@ -251,7 +251,10 @@ link:https://gerrit-review.googlesource.com/admin/repos/gerrit,branches[
 Gerrit Web UI] or by push.
 
 * Push the commits done on `stable-$version` to `refs/for/stable-$version` and
-get them merged
+get them merged.
+
+* Create a change updating the `defaultbranch` field in the `.gitreview`
+to match the branch name created.
 
 
 [[push-tag]]

WORKSPACE

@@ -1119,8 +1119,8 @@ maven_jar(
 # and httpasyncclient as necessary.
 maven_jar(
     name = "elasticsearch-rest-client",
-    artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.3.0",
-    sha1 = "3cdc211c8efb72c202107b40dee356f4f2f0f9bd",
+    artifact = "org.elasticsearch.client:elasticsearch-rest-client:7.3.1",
+    sha1 = "f5793c89b50a159cbb3e15e17bb981ff854cbe51",
 )
 
 maven_jar(

javatests/com/google/gerrit/elasticsearch/ElasticContainer.java

@@ -59,7 +59,7 @@ public class ElasticContainer extends ElasticsearchContainer {
       case V7_2:
         return "blacktop/elasticsearch:7.2.1";
       case V7_3:
-        return "blacktop/elasticsearch:7.3.0";
+        return "blacktop/elasticsearch:7.3.1";
     }
     throw new IllegalStateException("No tests for version: " + version.name());
   }