如何重试Spring Batch FlatFileItemReader？

<bean id="itemReader" class="org.springframework.batch.item.file.FlatFileItemReader">
    <property name="resource" value="file:/path/to/file.csv" />
    <property name="lineMapper">
        <bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">
            <property name="lineTokenizer">
                <bean class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
                    <property name="delimiter" value="," />
                </bean>
            </property>
            <property name="fieldSetMapper">
                <bean class="org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper">
                    <property name="prototypeBeanName" value="item" />
                </bean>
            </property>
        </bean>
    </property>
</bean>

<bean id="retryTemplate" class="org.springframework.retry.support.RetryTemplate">
    <property name="retryPolicy">
        <bean class="org.springframework.retry.policy.SimpleRetryPolicy">
            <property name="maxAttempts" value="3" />
        </bean>
    </property>
</bean>

<bean id="step" class="org.springframework.batch.core.step.tasklet.TaskletStep">
    <property name="tasklet">
        <bean class="org.springframework.batch.core.step.item.SimpleRetryTasklet">
            <property name="retryTemplate" ref="retryTemplate" />
            <property name="itemReader" ref="itemReader" />
        </bean>
    </property>
</bean>