Remove unused imports and apply imports code style

Author: fmbenhassine

spring-batch-core/src/main/java/org/springframework/batch/core/ItemWriteListener.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.batch.core;
 
-import java.util.List;
-
 import org.springframework.batch.core.scope.context.ChunkContext;
 import org.springframework.batch.item.Chunk;
 import org.springframework.batch.item.ItemWriter;

spring-batch-core/src/main/java/org/springframework/batch/core/annotation/AfterWrite.java

@@ -20,7 +20,6 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
-import java.util.List;
 
 import org.springframework.batch.core.ItemWriteListener;
 import org.springframework.batch.item.ItemWriter;

spring-batch-core/src/main/java/org/springframework/batch/core/annotation/BeforeWrite.java

@@ -20,7 +20,6 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
-import java.util.List;
 
 import org.springframework.batch.core.ItemWriteListener;
 import org.springframework.batch.item.ItemWriter;

spring-batch-core/src/main/java/org/springframework/batch/core/annotation/OnWriteError.java

@@ -20,7 +20,6 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
-import java.util.List;
 
 import org.springframework.batch.core.ItemWriteListener;
 import org.springframework.batch.item.ItemWriter;

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/AutomaticJobRegistrarBeanPostProcessor.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.batch.core.configuration.annotation;
 
-import java.util.Iterator;
-
 import org.springframework.batch.core.configuration.JobRegistry;
 import org.springframework.batch.core.configuration.support.ApplicationContextFactory;
 import org.springframework.batch.core.configuration.support.AutomaticJobRegistrar;

spring-batch-core/src/main/java/org/springframework/batch/core/configuration/annotation/StepBuilderFactory.java

@@ -17,7 +17,6 @@
 
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.batch.core.step.builder.StepBuilder;
-import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.util.Assert;
 
 /**

spring-batch-core/src/main/java/org/springframework/batch/core/job/builder/JobBuilderHelper.java

@@ -27,7 +27,6 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
-import org.springframework.batch.core.Job;
 import org.springframework.batch.core.JobExecutionListener;
 import org.springframework.batch.core.JobParametersIncrementer;
 import org.springframework.batch.core.JobParametersValidator;

spring-batch-core/src/main/java/org/springframework/batch/core/launch/support/TaskExecutorJobLauncher.java

@@ -15,29 +15,18 @@
  */
 package org.springframework.batch.core.launch.support;
 
-import java.time.Duration;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.springframework.batch.core.BatchStatus;
-import org.springframework.batch.core.ExitStatus;
 import org.springframework.batch.core.Job;
 import org.springframework.batch.core.JobExecution;
 import org.springframework.batch.core.JobInstance;
 import org.springframework.batch.core.JobParameters;
 import org.springframework.batch.core.JobParametersInvalidException;
-import org.springframework.batch.core.StepExecution;
 import org.springframework.batch.core.launch.JobLauncher;
-import org.springframework.batch.core.observability.BatchMetrics;
 import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;
 import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.batch.core.repository.JobRestartException;
-import org.springframework.beans.factory.InitializingBean;
 import org.springframework.core.task.SyncTaskExecutor;
 import org.springframework.core.task.TaskExecutor;
-import org.springframework.core.task.TaskRejectedException;
-import org.springframework.util.Assert;
 
 /**
  * Implementation of the {@link JobLauncher} interface based on a {@link TaskExecutor}.

spring-batch-core/src/main/java/org/springframework/batch/core/listener/StepListenerMetaData.java

@@ -17,7 +17,6 @@
 
 import java.lang.annotation.Annotation;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 import org.springframework.batch.core.ChunkListener;

spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobExecutionDao.java

@@ -24,7 +24,6 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
-import java.util.Date;
 import java.util.Map;
 import java.util.Set;