Spring Batch 5.0 with Spring Boot -- Tasklet job not starting automatically - spring-boot

Question

I have a very simple Spring Boot project with Spring Batch 5.0 and a CommmandLineRunner. There is one Job, one step, and one tasklet that simply prints "Running".
I followed directions and would expect the job to start and complete.
No errors; the Batch database table are being created; the Job and Step beans are being created.
It just doesn't run.
I would be grateful for any insights or assistance!
NOTE: If I launch the job explicitly from the CommandLineRunner using an autowired JobLauncher, it works fine. It just doesn't launch the job automatically (as promised).
NOTE 2: Removing #EnableBatchProcessing makes no difference.
Code follows
application.properties:
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost/postgres
spring.batch.jdbc.initialize-schema=always
spring.batch.job.enabled=true
Application.java:
#SpringBootApplication
#EnableBatchProcessing
public class Application implements CommandLineRunner {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
#Override
public void run(String... args) throws Exception {
System.out.println("Starting...");
Thread.sleep(2000);
}
}
Job configuration:
#Configuration
public class AbacusJobConfiguration {
Logger logger = LoggerFactory.getLogger(AbacusJobConfiguration.class);
#Bean
public Step step(JobRepository jobRepository, PlatformTransactionManager transactionManager, Tasklet tasklet1) {
logger.info("Building step");
return new StepBuilder("myTasklet", jobRepository)
.tasklet(tasklet1, transactionManager).allowStartIfComplete(true)
.build();
}
#Bean
public Job job(JobRepository jobRepository, PlatformTransactionManager transactionManager, Step step1) {
return new JobBuilder("myJob", jobRepository)
.incrementer(new RunIdIncrementer())
.start(step1)
.build();
}
#Bean
public MyTasklet myTasklet() {
logger.info("Building tasklet");
var tasklet = new MyTasklet();
return tasklet;
}
}
Tasklet:
public class MyTasklet implements Tasklet {
#Override
public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
System.out.println("Running MyTasklet");
return RepeatStatus.FINISHED;
}
}
Runtime log:
2023-01-30T10:54:07.407-05:00 INFO 72774 --- [ main] c.optionmetrics.abacuscli.Application : Starting Application using Java 17.0.6 with PID 72774 (/Users/dhait/IdeaProjects/abacus-cli/target/classes started by dhait in /Users/dhait/IdeaProjects/abacus-cli)
2023-01-30T10:54:07.410-05:00 INFO 72774 --- [ main] c.optionmetrics.abacuscli.Application : No active profile set, falling back to 1 default profile: "default"
2023-01-30T10:54:07.626-05:00 INFO 72774 --- [ main] o.s.b.c.c.annotation.BatchRegistrar : Finished Spring Batch infrastructure beans configuration in 2 ms.
2023-01-30T10:54:07.836-05:00 INFO 72774 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2023-01-30T10:54:07.918-05:00 INFO 72774 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection org.postgresql.jdbc.PgConnection#6ae7deac
2023-01-30T10:54:07.919-05:00 INFO 72774 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2023-01-30T10:54:07.928-05:00 INFO 72774 --- [ main] o.s.b.c.r.s.JobRepositoryFactoryBean : No database type set, using meta data indicating: POSTGRES
2023-01-30T10:54:07.940-05:00 INFO 72774 --- [ main] c.o.abacuscli.AbacusJobConfiguration : Building tasklet
2023-01-30T10:54:07.942-05:00 INFO 72774 --- [ main] c.o.abacuscli.AbacusJobConfiguration : Building step
2023-01-30T10:54:07.954-05:00 INFO 72774 --- [ main] .c.a.BatchObservabilityBeanPostProcessor : No Micrometer observation registry found, defaulting to ObservationRegistry.NOOP
2023-01-30T10:54:07.959-05:00 INFO 72774 --- [ main] .c.a.BatchObservabilityBeanPostProcessor : No Micrometer observation registry found, defaulting to ObservationRegistry.NOOP
2023-01-30T10:54:07.963-05:00 INFO 72774 --- [ main] o.s.b.c.l.support.SimpleJobLauncher : No TaskExecutor has been set, defaulting to synchronous executor.
2023-01-30T10:54:08.040-05:00 INFO 72774 --- [ main] c.optionmetrics.abacuscli.Application : Started Application in 0.882 seconds (process running for 1.246)
Starting...
2023-01-30T10:54:10.050-05:00 INFO 72774 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2023-01-30T10:54:10.054-05:00 INFO 72774 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.

Answer 1

With Spring Boot 3, there is no need for #EnableBatchProcessing. If you add it, the auto-configuration of Spring Batch (including the automatic launching of jobs at startup) will back off.
This is mentioned in the migration guide of Spring Boot 3.
EDIT: Not able to reproduce the issue. Things are working as expected with Spring Batch 5 and Spring Boot 3.
$>curl https://start.spring.io/starter.zip -d dependencies=h2,batch -d type=maven-project -o my-batch-job.zip
$>unzip my-batch-job.zip
$> # Paste AbacusJobConfiguration and MyTasklet code in the demo package + add imports
$>./mvnw package
$>./mvnw spring-boot:run
This prints:
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v3.0.2)
2023-01-31T07:48:24.206+01:00 INFO 91983 --- [ main] com.example.demo.DemoApplicationTests : Starting DemoApplicationTests using Java 17.0.4 with PID 91983 (started by mbenhassine in /Users/mbenhassine/Downloads/so75287102)
2023-01-31T07:48:24.207+01:00 INFO 91983 --- [ main] com.example.demo.DemoApplicationTests : No active profile set, falling back to 1 default profile: "default"
2023-01-31T07:48:24.625+01:00 INFO 91983 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2023-01-31T07:48:24.779+01:00 INFO 91983 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Added connection conn0: url=jdbc:h2:mem:0b237f7c-fec8-446f-b2ac-086801ddb7fd user=SA
2023-01-31T07:48:24.780+01:00 INFO 91983 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2023-01-31T07:48:24.858+01:00 INFO 91983 --- [ main] c.example.demo.AbacusJobConfiguration : Building tasklet
2023-01-31T07:48:24.860+01:00 INFO 91983 --- [ main] c.example.demo.AbacusJobConfiguration : Building step
2023-01-31T07:48:24.957+01:00 INFO 91983 --- [ main] com.example.demo.DemoApplicationTests : Started DemoApplicationTests in 0.91 seconds (process running for 1.585)
2023-01-31T07:48:24.958+01:00 INFO 91983 --- [ main] o.s.b.a.b.JobLauncherApplicationRunner : Running default command line with: []
2023-01-31T07:48:24.990+01:00 INFO 91983 --- [ main] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=myJob]] launched with the following parameters: [{'run.id':'{value=1, type=class java.lang.Long, identifying=true}'}]
2023-01-31T07:48:25.009+01:00 INFO 91983 --- [ main] o.s.batch.core.job.SimpleStepHandler : Executing step: [myTasklet]
Running MyTasklet
2023-01-31T07:48:25.017+01:00 INFO 91983 --- [ main] o.s.batch.core.step.AbstractStep : Step: [myTasklet] executed in 8ms
2023-01-31T07:48:25.025+01:00 INFO 91983 --- [ main] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=myJob]] completed with the following parameters: [{'run.id':'{value=1, type=class java.lang.Long, identifying=true}'}] and the following status: [COMPLETED] in 23ms
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.556 s - in com.example.demo.DemoApplicationTests
2023-01-31T07:48:25.312+01:00 INFO 91983 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2023-01-31T07:48:25.315+01:00 INFO 91983 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.