Spring batch job jobrepository is null

i make one job that like this.

<batch:job id="parentJob">
    <batch:step id="parentJob.step1">
        <batch:job ref="childJob" job-launcher="batchJobLauncher" />
    </batch:step>
</batch:job>

the parentJob has childJob as a step. and i assign batchJobLauncher as a childJob's launcher.

the problem is the spring initializing is fail with this error message.

Caused by: java.lang.IllegalArgumentException: JobRepository must be set
    at org.springframework.util.Assert.notNull(Assert.java:112)
    at org.springframework.batch.core.job.AbstractJob.afterPropertiesSet(AbstractJob.java:109)
    at org.springframework.batch.core.configuration.xml.JobParserJobFactoryBean.getObject(JobParserJobFactoryBean.java:86)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
    ... 136 more

a job must have a reference of jobRepository but the parentJob doesn't.

i define job repository well and another job is fine with it.

if remove the childJob's specific launcher, spring initializing is success.

i debug spring code, i found JobParserJobFactoryBean class have null JobRepository so the parentJob has null, too.

• version info
  
  
  
  • spring 3.2.0.RELEASE
  
  
  • spring-batch 2.1.8.RELEASE
  
  
  
  

what's the problem??