diff --git a/kafka-sample/spring-boot-multiple-producers-consumers/pom.xml b/kafka-sample/spring-boot-multiple-producers-consumers/pom.xml
index 0570b59d..629197d1 100644
--- a/kafka-sample/spring-boot-multiple-producers-consumers/pom.xml
+++ b/kafka-sample/spring-boot-multiple-producers-consumers/pom.xml
@@ -104,7 +104,7 @@
                 <configuration>
                     <java>
                         <palantirJavaFormat>
-                            <version>2.38.0</version>
+                            <version>2.30.0</version>
                         </palantirJavaFormat>
                         <importOrder/>
                         <removeUnusedImports/>
diff --git a/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/JsonReceiver.java b/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/JsonReceiver.java
index dd18468a..94d161f4 100644
--- a/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/JsonReceiver.java
+++ b/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/JsonReceiver.java
@@ -5,14 +5,12 @@
 import com.example.springbootkafka.multi.domain.SimpleMessage;
 import jakarta.validation.Valid;
 import java.util.concurrent.CountDownLatch;
-import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.kafka.annotation.KafkaListener;
 import org.springframework.messaging.handler.annotation.Payload;
 import org.springframework.stereotype.Component;
 import org.springframework.validation.annotation.Validated;
 
-@Getter
 @Component
 @Slf4j
 @Validated
@@ -20,8 +18,12 @@ public class JsonReceiver {
 
     private final CountDownLatch latch = new CountDownLatch(1);
 
+    public CountDownLatch getLatch() {
+        return latch;
+    }
+
     @KafkaListener(topics = TOPIC_TEST_2, containerFactory = "jsonKafkaListenerContainerFactory")
-    public void jsonListener(@Payload @Valid SimpleMessage cr) {
+    public void listen2(@Payload @Valid SimpleMessage cr) {
         log.info(TOPIC_TEST_2 + " Received a message with key=" + cr.key() + ", value=" + cr.value());
         latch.countDown();
     }
diff --git a/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/SimpleReceiver.java b/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/SimpleReceiver.java
index 307ab817..34817bff 100644
--- a/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/SimpleReceiver.java
+++ b/kafka-sample/spring-boot-multiple-producers-consumers/src/main/java/com/example/springbootkafka/multi/receiver/SimpleReceiver.java
@@ -3,22 +3,26 @@
 import static com.example.springbootkafka.multi.util.AppConstants.TOPIC_TEST_1;
 
 import java.util.concurrent.CountDownLatch;
-import lombok.Getter;
-import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.kafka.annotation.KafkaListener;
 import org.springframework.stereotype.Component;
 
-@Getter
-@Slf4j
 @Component
 public class SimpleReceiver {
 
+    private static final Logger logger = LoggerFactory.getLogger(SimpleReceiver.class);
+
     private final CountDownLatch latch = new CountDownLatch(1);
 
+    public CountDownLatch getLatch() {
+        return latch;
+    }
+
     @KafkaListener(topics = TOPIC_TEST_1, containerFactory = "simpleKafkaListenerContainerFactory")
-    public void simpleListener(ConsumerRecord<Integer, String> cr) {
-        log.info(TOPIC_TEST_1 + " Received a message with key=" + cr.key() + ", value=" + cr.value());
+    public void listen1(ConsumerRecord<Integer, String> cr) {
+        logger.info(TOPIC_TEST_1 + " Received a message with key=" + cr.key() + ", value=" + cr.value());
         latch.countDown();
     }
 }
diff --git a/kafka-sample/spring-boot-multiple-producers-consumers/src/test/java/com/example/springbootkafka/multi/TestSpringBootKafkaMultiApplication.java b/kafka-sample/spring-boot-multiple-producers-consumers/src/test/java/com/example/springbootkafka/multi/TestSpringBootKafkaMultiApplication.java
index 6590e486..78bf3c44 100644
--- a/kafka-sample/spring-boot-multiple-producers-consumers/src/test/java/com/example/springbootkafka/multi/TestSpringBootKafkaMultiApplication.java
+++ b/kafka-sample/spring-boot-multiple-producers-consumers/src/test/java/com/example/springbootkafka/multi/TestSpringBootKafkaMultiApplication.java
@@ -13,7 +13,7 @@ public class TestSpringBootKafkaMultiApplication {
     @Bean
     @ServiceConnection
     KafkaContainer kafkaContainer() {
-        return new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka").withTag("7.5.2")).withKraft();
+        return new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka").withTag("7.5.1")).withKraft();
     }
 
     public static void main(String[] args) {