Optimize imports based on new checkstyle rules

Author: sobychacko

samples/sample-05/src/test/java/com/example/Sample05Application1Tests.java

@@ -16,8 +16,6 @@
 
 package com.example;
 
-import static org.awaitility.Awaitility.await;
-
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 
@@ -28,6 +26,8 @@
 import org.springframework.kafka.core.KafkaTemplate;
 import org.springframework.test.annotation.DirtiesContext;
 
+import static org.awaitility.Awaitility.await;
+
 /**
  * This test is going to fail from IDE since there is no exposed {@code spring.kafka.bootstrap-servers} system property.
  * Use Maven to run tests which enables global embedded Kafka broker via properties provided to Surefire plugin.

samples/sample-05/src/test/java/com/example/Sample05Application2Tests.java

@@ -16,8 +16,6 @@
 
 package com.example;
 
-import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
-
 import java.util.concurrent.TimeUnit;
 
 import org.apache.kafka.common.errors.TimeoutException;
@@ -29,6 +27,8 @@
 import org.springframework.kafka.core.KafkaTemplate;
 import org.springframework.test.annotation.DirtiesContext;
 
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
+
 /**
  * This test is going to fail from IDE since there is no exposed {@code spring.kafka.bootstrap-servers} system property.
  * This test demonstrates that global embedded Kafka broker config for {@code auto.create.topics.enable=false}

samples/sample-06/src/test/java/com/example/ApplicationTests.java

@@ -19,8 +19,6 @@
 import java.time.Duration;
 import java.util.List;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 import org.apache.kafka.common.serialization.Serdes;
 import org.apache.kafka.streams.TestInputTopic;
 import org.apache.kafka.streams.TestOutputTopic;
@@ -37,6 +35,8 @@
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.kafka.config.StreamsBuilderFactoryBean;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * @author Nacho Munoz
  * @author Soby Chacko

spring-kafka-docs/src/main/kotlin/org/springframework/kafka/kdocs/requestreply/Application.kt

@@ -15,27 +15,25 @@
  */
 package org.springframework.kafka.kdocs.requestreply
 
-import org.springframework.boot.autoconfigure.SpringBootApplication
-import org.springframework.kafka.core.KafkaAdmin.NewTopics
-import org.springframework.kafka.config.TopicBuilder
-import org.springframework.kafka.core.KafkaTemplate
-import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory
-import org.springframework.kafka.requestreply.ReplyingKafkaTemplate
-import org.springframework.kafka.support.converter.ByteArrayJsonMessageConverter
-import org.springframework.boot.ApplicationRunner
-import org.springframework.boot.ApplicationArguments
-import org.springframework.kafka.requestreply.RequestReplyTypedMessageFuture
-import org.springframework.messaging.support.MessageBuilder
-import org.springframework.core.ParameterizedTypeReference
-import org.springframework.kafka.annotation.KafkaListener
-import org.springframework.messaging.handler.annotation.SendTo
-import kotlin.jvm.JvmStatic
 import org.apache.kafka.common.serialization.ByteArrayDeserializer
 import org.apache.kafka.common.serialization.ByteArraySerializer
 import org.slf4j.LoggerFactory
+import org.springframework.boot.ApplicationRunner
 import org.springframework.boot.SpringApplication
+import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.context.annotation.Bean
+import org.springframework.core.ParameterizedTypeReference
+import org.springframework.kafka.annotation.KafkaListener
+import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory
+import org.springframework.kafka.config.TopicBuilder
+import org.springframework.kafka.core.KafkaAdmin.NewTopics
+import org.springframework.kafka.core.KafkaTemplate
 import org.springframework.kafka.core.ProducerFactory
+import org.springframework.kafka.requestreply.ReplyingKafkaTemplate
+import org.springframework.kafka.requestreply.RequestReplyTypedMessageFuture
+import org.springframework.kafka.support.converter.ByteArrayJsonMessageConverter
+import org.springframework.messaging.handler.annotation.SendTo
+import org.springframework.messaging.support.MessageBuilder
 import java.util.concurrent.TimeUnit
 import java.util.function.Consumer
 

spring-kafka-docs/src/main/kotlin/org/springframework/kafka/kdocs/started/consumer/Application.kt

@@ -15,12 +15,11 @@
  */
 package org.springframework.kafka.kdocs.started.consumer
 
-import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.apache.kafka.clients.admin.NewTopic
-import org.springframework.kafka.annotation.KafkaListener
-import kotlin.jvm.JvmStatic
+import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
 import org.springframework.context.annotation.Bean
+import org.springframework.kafka.annotation.KafkaListener
 import org.springframework.kafka.kdocs.started.producer.Application
 
 /**

spring-kafka-docs/src/main/kotlin/org/springframework/kafka/kdocs/started/noboot/Sender.kt

@@ -15,11 +15,7 @@
  */
 package org.springframework.kafka.kdocs.started.noboot
 
-import org.springframework.boot.runApplication
 import org.springframework.kafka.core.KafkaTemplate
-import kotlin.jvm.JvmStatic
-import org.springframework.context.annotation.AnnotationConfigApplicationContext
-import org.springframework.kafka.kdocs.started.producer.Application
 
 /**
  * Code snippet for quick start.

spring-kafka-test/src/main/java/org/springframework/kafka/test/EmbeddedKafkaBroker.java

@@ -19,14 +19,13 @@
 import java.util.Map;
 import java.util.Set;
 
+import kafka.server.KafkaConfig;
 import org.apache.kafka.clients.admin.NewTopic;
 import org.apache.kafka.clients.consumer.Consumer;
 
 import org.springframework.beans.factory.DisposableBean;
 import org.springframework.beans.factory.InitializingBean;
 
-import kafka.server.KafkaConfig;
-
 /**
  * @author Gary Russell
  * @since 3.1

spring-kafka-test/src/main/java/org/springframework/kafka/test/EmbeddedKafkaZKBroker.java

@@ -42,6 +42,13 @@
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
+import kafka.cluster.EndPoint;
+import kafka.server.KafkaConfig;
+import kafka.server.KafkaServer;
+import kafka.utils.CoreUtils;
+import kafka.utils.TestUtils;
+import kafka.zk.ZkFourLetterWords;
+import kafka.zookeeper.ZooKeeperClient;
 import org.apache.commons.logging.LogFactory;
 import org.apache.kafka.clients.admin.AdminClient;
 import org.apache.kafka.clients.admin.AdminClientConfig;
@@ -67,14 +74,6 @@
 import org.springframework.retry.support.RetryTemplate;
 import org.springframework.util.Assert;
 
-import kafka.cluster.EndPoint;
-import kafka.server.KafkaConfig;
-import kafka.server.KafkaServer;
-import kafka.utils.CoreUtils;
-import kafka.utils.TestUtils;
-import kafka.zk.ZkFourLetterWords;
-import kafka.zookeeper.ZooKeeperClient;
-
 /**
  * An embedded Kafka Broker(s) and Zookeeper manager.
  * This class is intended to be used in the unit tests.

spring-kafka-test/src/main/java/org/springframework/kafka/test/core/BrokerAddress.java

@@ -16,10 +16,10 @@
 
 package org.springframework.kafka.test.core;
 
-import org.springframework.util.Assert;
-
 import kafka.cluster.BrokerEndPoint;
 
+import org.springframework.util.Assert;
+
 /**
  * Encapsulates the address of a Kafka broker.
  *

spring-kafka/src/main/java/org/springframework/kafka/core/KafkaTemplate.java

@@ -33,6 +33,8 @@
 import java.util.concurrent.locks.ReentrantLock;
 import java.util.function.Function;
 
+import io.micrometer.observation.Observation;
+import io.micrometer.observation.ObservationRegistry;
 import org.apache.commons.logging.LogFactory;
 import org.apache.kafka.clients.admin.AdminClientConfig;
 import org.apache.kafka.clients.consumer.Consumer;
@@ -82,9 +84,6 @@
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 
-import io.micrometer.observation.Observation;
-import io.micrometer.observation.ObservationRegistry;
-
 /**
  * A template for executing high-level operations. When used with a
  * {@link DefaultKafkaProducerFactory}, the template is thread-safe. The producer factory