Spring batch run exception throwable method after each tasklet done in afterstep()

public class TaskletConfiguration {

  ...

  @Bean
  public Step step() {
    return steps.get("step")
        .tasklet(tasklet)
        .exceptionHandler(logExceptionHandler()) // Handler for logging exception to specific channel
        .build();
  }

  @Bean
  public Job job() {
    return jobs.get("job")
        .start(step())
        .build();
  }
}

public class ExampleTasklet implements Tasklet, StepExecutionListener {

  ...

  @Override
  public RepeatStatus execute(...) throws Exception {
    // Do my tasklet
    // Throw if it fails, and be handled by logExceptionHandler()
  }

  @Override
  public ExitStatus afterStep(StepExecution stepExecution) {
    // Want to throw so that logExceptionHandler() can handle it as throwing in execute().
    throwable_function();
  }
}

This is my example code using tasklet in spring boot. My problem is: I want to throw exception from afterstep(), but the interface does not allow it.

Despite this limitation, why I obsessed with afterstep() is that I want to make abstract class to make Tasklet template which can verify each execution in afterstep(). I want verification to run after all execute() is done, which will be overridden by subclass. So I have no choices but using afterstep().

Any idea to run verification method after each execute() with throwable or afterstep() can pass Exception to logExceptionHandler()? I hope to define logExceptionHandler() in TaskletConfiguration class. It will be obese if it is defined in Tasklet class, as I will make abstract class, which will be inherited by many subclasses.

Answer

The StepExecutionListener#afterStep is not designed to throw checked exceptions. Here is an excerpt from its Javadoc:

Called after execution of step's processing logic (both successful or failed).
Throwing exception in this method has no effect, it will only be logged.

Moreover, even if you throw a (runtime) exception in afterStep, the exception won’t be passed to the exception handler, it will only be logged as mentioned in the Javadoc.

I think it is too late to throw exceptions in StepExecutionListener#afterStep, this method can be used to check the status of the step execution and modify the ExitStatus if needed to drive the rest of the job execution flow.