Partitioned Job can't stop by itself after finishing? Spring Batch

Question

I wrote a Job of two Steps, with one of two steps being a partitioning step. The partition step uses TaskExecutorPartitionHandler and runs 5 slave steps in threads. The job

Answer 1

There are 2 solutions to your problem, although I don't know the cause.

First, you can use a CommandLineJobRunner to launch the Job. See documentation here. This class automatically exits the program at the end of the job and converts the ExitStatus to a return code (COMPLETED = 0, FAILED = 1...). The default return code are provided by a SimpleJvmExitCodeMapper.

The second solution would be to manually call a System.exit() instruction after your JobLauncher.run(). You can also convert the ExitStatus of the Job manually and use it in your manual exit :

// Create Job
JobLauncher jobLauncher = (JobLauncher) context.getBean("jobLauncher");
Job job = (Job) context.getBean(jobName);

// Create return codes mapper
SimpleJvmExitCodeMapper mapper = new SimpleJvmExitCodeMapper();

// Start Job
JobExecution execution = jobLauncher.run(job, new JobParameters());

// Close context
context.close();

// Map codes and exit
String status = execution.getExitStatus().getExitCode();
Integer returnCode = mapper.intValue(status);
System.exit(returnCode);