Does every job call in Spring Batch open a new database connection pool?

I'm querying rows from a database using JDBC template and for each rows, I'm programmatically running a job which executes a chunk-based step. I'm worried that each job call will create a new set of connection pool. Does it create a new set of connection pool or just connect to the current pool?

Main Method (Runs the job for each stores):

public static void main(String[] args) throws JobExecutionAlreadyRunningException, JobRestartException,
    JobInstanceAlreadyCompleteException, JobParametersInvalidException {

SpringApplication app = new SpringApplication(MainApp.class);
ConfigurableApplicationContext ctx = app.run(args);

JobLauncher jobLauncher = ctx.getBean(JobLauncher.class);
Job job = ctx.getBean("customerJob", Job.class);

storeRepository = ctx.getBean(StoreRepository.class);
customerRepository = ctx.getBean(CustomerRepository.class);

List<Store> stores = storeRepository.findAll();	


for (Store store: stores) {
    int customerCount = customerRepository.countCustomer(store.getStoreID(), reportDate);
    System.out.println("Count: "+ customerCount);
    if (customerCount != 0) {
	JobParameters jobParameters = new JobParametersBuilder()
		.addString("reportDate", reportDate)
		.addString("ID", store.getStoreID())
		.toJobParameters();
	JobExecution jobExecution = jobLauncher.run(job, jobParameters);
	BatchStatus batchStatus = jobExecution.getStatus();
	System.out.println("Batch Status " + batchStatus);
    }
    

}
}

Batch Job Configuration:

@Bean
public Step generateReport() throws Exception {
return this.stepBuilderFactory
	.get("generateReport")
	.<Customer, Customer>chunk(10)
	.reader(itemReader(null, null))
	.writer(itemWriter())
	.build();
}

@Bean
public Job customerReportJob() throws Exception {
return this.jobBuilderFactory
	.get("customerReportJob")
	.start(generateReport())
	.build();
}

Repository:

@Repository
public class CustomerRepositoryImpl implements CustomerRepository {

private final JdbcTemplate jdbcTemplate;

@Autowired
    public CustomerRepositoryImpl(JdbcTemplate jdbcTemplate) {
    this.jdbcTemplate = jdbcTemplate;
}

@Override
public List<Customer> findByIDAndReportDate(String ID, String reportDate) {
String sqlQuery = "SELECT * " +  
	"FROM CUSTOMER_REPORT " +
	"WHERE ID = " +  ID + "  " +
	"AND TO_CHAR(REPORT_DATE, 'MM/DD/YYYY') = '" + reportDate + "'";

return jdbcTemplate.query(sqlQuery, 
	(rs, rowNum) -> 
	new Customer(mapper(rs)));
}
}

application.properties:

# Oracle settings
spring.datasource.url=##
spring.datasource.username=##
spring.datasource.password=##
spring.datasource.driver-class-name=##

# Hikari
spring.datasource.hikari.maximum-pool-size=5
spring.datasource.hikari.minimumIdle=5
spring.datasource.hikari.idleTimeout=30000

logging.level.com.zaxxer.hikari=debug

# Spring Batch
spring.batch.job.enabled=false

According to your configuration, your jobs will use the same datasource/connection pool. You should be able to confirm that by looking at the logs.