How to write retryable-exception-classes using Spring Batch Annotation? - spring

Question

We're migrating from Spring Batch XML based application to latest Spring Boot 2.2.6.RELEASE version application at this moment.
I've the below XML Snippet which I want to convert it into the Annotation based Job. I am really struggling to find these options, as I went through https://docs.spring.io/spring-batch/docs/current/reference/html/step.html#taskletStep.
<batch:job id="myJob">
<batch:step id="step1">
<batch:tasklet>
<batch:chunk reader="reader" writer="writer" commit-interval="100" retry-limit="3" skip-limit="3">
<batch:retryable-exception-classes>
<batch:exclude class="org.springframework.dao.PessimisticLockingFailureException"/>
</batch:retryable-exception-classes>
<batch:skippable-exception-classes>
<batch:include class="org.springframework.dao.DeadlockLoserDataAccessException"/>
</batch:skippable-exception-classes>
</batch:chunk>
</batch:tasklet>
</batch:step>
</batch:job>
Another snippet:
<bean id="retryPolicy" class="org.springframework.retry.policy.ExceptionClassifierRetryPolicy">
<property name="policyMap">
<map>
<entry key="org.springframework.dao.ConcurrencyFailureException">
<bean class="org.springframework.batch.retry.policy.SimplreRetryPolicy">
<property name="maxAttempts" value="3" />
</bean>
</entry>
<entry key="org.springframework.dao.DeadlockLoserDataAccessException">
<bean class="org.springframework.batch.retry.policy.SimplreRetryPolicy">
<property name="maxAttempts" value="5" />
</bean>
</entry>
</map>
</property>
</bean>

Answer 1

There is a toggle at the top of each page that lets you choose which configuration style (XML or Java) you want to see in the code examples:
Now for the retryable exceptions section, here is the code with XML config:
And the equivalent in Java config:
If you want to provide a custom retry policy, you can use FaultTolerantStepBuilder#retryPolicy.