Merge branch 'stable-2.16'

* stable-2.16:
  ElasticContainer: Use 7.0.0-alpha2

Change-Id: If4b93c170bbd86395404782ebf392f4c31987ea9
diff --git a/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java b/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
index f617488..8583d2d 100644
--- a/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
+++ b/javatests/com/google/gerrit/elasticsearch/ElasticContainer.java
@@ -47,7 +47,7 @@
       case V6_5:
         return "docker.elastic.co/elasticsearch/elasticsearch-oss:6.5.4";
       case V7_0:
-        return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.0-alpha1";
+        return "docker.elastic.co/elasticsearch/elasticsearch-oss:7.0.0-alpha2";
     }
     throw new IllegalStateException("No tests for version: " + version.name());
   }