fix tests

Author: l-trotta

java-client/src/test/java/co/elastic/clients/elasticsearch/ElasticsearchTestServer.java

@@ -161,6 +161,7 @@ public synchronized ElasticsearchTestServer start() {
         }
 
         String esImage = "docker.elastic.co/elasticsearch/elasticsearch:" + version;
+        System.out.println("Starting elasticsearch server version " + version);
 
         DockerImageName image;
         if (plugins.length == 0) {

java-client/src/test/java/co/elastic/clients/elasticsearch/_helpers/vector/Base64VectorTest.java

@@ -106,7 +106,7 @@ public void oneBase64VectorIngestTest() throws IOException {
         elasticsearchClient.indices().refresh();
 
         // Asserting exactly 1 vector has been ingested
-        assertEquals(1L, elasticsearchClient.indices().stats().all().total().docs().count());
+        assertEquals(1L, elasticsearchClient.indices().stats(s -> s.index(INDEX)).all().total().docs().count());
 
         // Asserting vector can be deserialized
         SearchResponse<CustomVectorDoc> resp = elasticsearchClient.search(s -> s.index(INDEX),