diff --git a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CountService.java b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CountService.java
index 211189d20aa..8105ea82da5 100644
--- a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CountService.java
+++ b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CountService.java
@@ -14,8 +14,7 @@ public interface CountService {
      *
      * @param filter
      *            the filter, or {@code null} to use no filter
-     * @return
-     *           the number of items in the service that match the filter
+     * @return the number of items in the service that match the filter
      */
     public long count(@Nullable Filter filter);
 
diff --git a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CrudService.java b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CrudService.java
index 9f2225935a0..72de511899a 100644
--- a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CrudService.java
+++ b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/CrudService.java
@@ -2,7 +2,7 @@
 
 /**
  * A service that can create, read, update, and delete a given type of object.
- * 
+ *
  * @param <T>
  *            the type of object to manage
  * @param <ID>
diff --git a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/FormService.java b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/FormService.java
index 7bc78c1fd5a..b6b74d9a36e 100644
--- a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/FormService.java
+++ b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/FormService.java
@@ -2,12 +2,12 @@
 
 /**
  * A service that can update and delete a given type of object.
- * 
+ *
  * @param <T>
  *            the type of object to manage
  * @param <ID>
  *            the type of the object's identifier
- * 
+ *
  */
 public interface FormService<T, ID> {
 
diff --git a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/ListService.java b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/ListService.java
index c55a3db83ea..237efd7afb6 100644
--- a/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/ListService.java
+++ b/vaadin-spring/src/main/java/com/vaadin/flow/spring/data/ListService.java
@@ -9,7 +9,7 @@
 
 /**
  * A service that can list the given type of object.
- * 
+ *
  * @param <T>
  *            the type of object to list
  */