BAEL-7374 - Review comments.

spring-kafka-3/src/main/java/com/baeldung/spring/kafka/start/stop/consumer/Constants.java

@@ -1,8 +1,6 @@
 package com.baeldung.spring.kafka.start.stop.consumer;
 
 public class Constants {
-
     public static final String MULTI_PARTITION_TOPIC = "multi_partition_topic";
-
     public static final String LISTENER_ID = "listener-id-1";
 }

spring-kafka-3/src/main/java/com/baeldung/spring/kafka/start/stop/consumer/StartStopConsumerApplication.java

@@ -5,9 +5,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 public class StartStopConsumerApplication {
-
     public static void main(String[] args) {
         SpringApplication.run(StartStopConsumerApplication.class, args);
     }
-
 }

spring-kafka-3/src/main/java/com/baeldung/spring/kafka/start/stop/consumer/UserEvent.java

@@ -1,10 +1,8 @@
 package com.baeldung.spring.kafka.start.stop.consumer;
 
 public class UserEvent {
-
     private String userEventId;
 
-
     public UserEvent() {
     }
 
@@ -19,5 +17,4 @@ public class UserEvent {
     public void setUserEventId(String userEventId) {
         this.userEventId = userEventId;
     }
-
 }