diff --git a/src/main/java/org/springframework/data/elasticsearch/client/reactive/DefaultReactiveElasticsearchClient.java b/src/main/java/org/springframework/data/elasticsearch/client/reactive/DefaultReactiveElasticsearchClient.java
index 984d0785b..e56c1707c 100644
--- a/src/main/java/org/springframework/data/elasticsearch/client/reactive/DefaultReactiveElasticsearchClient.java
+++ b/src/main/java/org/springframework/data/elasticsearch/client/reactive/DefaultReactiveElasticsearchClient.java
@@ -567,10 +567,6 @@ public class DefaultReactiveElasticsearchClient implements ReactiveElasticsearch
 				.next();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient#ping(org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient.ReactiveElasticsearchClientCallback)
-	 */
 	@Override
 	public <T> Mono<T> execute(ReactiveElasticsearchClientCallback<T> callback) {
 
diff --git a/src/main/java/org/springframework/data/elasticsearch/client/reactive/ReactiveElasticsearchClient.java b/src/main/java/org/springframework/data/elasticsearch/client/reactive/ReactiveElasticsearchClient.java
index 9130e9f1e..a85d9283d 100644
--- a/src/main/java/org/springframework/data/elasticsearch/client/reactive/ReactiveElasticsearchClient.java
+++ b/src/main/java/org/springframework/data/elasticsearch/client/reactive/ReactiveElasticsearchClient.java
@@ -613,6 +613,7 @@ public interface ReactiveElasticsearchClient {
 	 * unavailable.
 	 *
 	 * @param callback the {@link ReactiveElasticsearchClientCallback callback} wielding the actual command to run.
+	 * @param <T> the type emitted by the returned Mono.
 	 * @return the {@link Mono} emitting the {@link ClientResponse} once subscribed.
 	 */
 	@SuppressWarnings("JavaDoc")
@@ -630,6 +631,7 @@ public interface ReactiveElasticsearchClient {
 	/**
 	 * Low level callback interface operating upon {@link WebClient} to send commands towards elasticsearch.
 	 *
+	 * @param <T> the type emitted by the returned Mono.
 	 * @author Christoph Strobl
 	 * @since 3.2
 	 */