Remove unnecessary JobOperator bean definition

See gh-38325

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/BatchAutoConfiguration.java

@@ -18,14 +18,10 @@ package org.springframework.boot.autoconfigure.batch;
 
 import javax.sql.DataSource;
 
-import org.springframework.batch.core.configuration.ListableJobLocator;
 import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
 import org.springframework.batch.core.configuration.support.DefaultBatchConfiguration;
-import org.springframework.batch.core.converter.JobParametersConverter;
 import org.springframework.batch.core.explore.JobExplorer;
 import org.springframework.batch.core.launch.JobLauncher;
-import org.springframework.batch.core.launch.JobOperator;
-import org.springframework.batch.core.launch.support.SimpleJobOperator;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.ExitCodeGenerator;
@@ -92,20 +88,6 @@ public class BatchAutoConfiguration {
 		return new JobExecutionExitCodeGenerator();
 	}
 
-	@Bean
-	@ConditionalOnMissingBean(JobOperator.class)
-	public SimpleJobOperator jobOperator(ObjectProvider<JobParametersConverter> jobParametersConverter,
-			JobExplorer jobExplorer, JobLauncher jobLauncher, ListableJobLocator jobRegistry,
-			JobRepository jobRepository) throws Exception {
-		SimpleJobOperator factory = new SimpleJobOperator();
-		factory.setJobExplorer(jobExplorer);
-		factory.setJobLauncher(jobLauncher);
-		factory.setJobRegistry(jobRegistry);
-		factory.setJobRepository(jobRepository);
-		jobParametersConverter.ifAvailable(factory::setJobParametersConverter);
-		return factory;
-	}
-
 	@Configuration(proxyBeanMethods = false)
 	static class SpringBootBatchConfiguration extends DefaultBatchConfiguration {
 

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/batch/BatchAutoConfigurationTests.java

@@ -41,6 +41,7 @@ import org.springframework.batch.core.configuration.support.JobRegistryBeanPostP
 import org.springframework.batch.core.explore.JobExplorer;
 import org.springframework.batch.core.job.AbstractJob;
 import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.batch.core.launch.JobOperator;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -105,8 +106,11 @@ class BatchAutoConfigurationTests {
 		this.contextRunner.withInitializer(ConditionEvaluationReportLoggingListener.forLogLevel(LogLevel.INFO))
 			.withUserConfiguration(TestConfiguration.class, EmbeddedDataSourceConfiguration.class)
 			.run((context) -> {
+				assertThat(context).hasSingleBean(JobRepository.class);
 				assertThat(context).hasSingleBean(JobLauncher.class);
 				assertThat(context).hasSingleBean(JobExplorer.class);
+				assertThat(context).hasSingleBean(JobRegistry.class);
+				assertThat(context).hasSingleBean(JobOperator.class);
 				assertThat(context.getBean(BatchProperties.class).getJdbc().getInitializeSchema())
 					.isEqualTo(DatabaseInitializationMode.EMBEDDED);
 				assertThat(new JdbcTemplate(context.getBean(DataSource.class))