Spring Batch Unit test error

[amique]

Hi All

Unit test of my Spring Batch based application are failing due to following error. Can anyone please help me out

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cacheInterceptor' defined in URL [jar:file:/C:/Users/rafiquea/.m2/repository/org/springframework/batch/spring-batch-admin-manager/1.2.1.RELEASE/spring-batch-admin-manager-1.2.1.RELEASE.jar!/META-INF/spring/batch/bootstrap/manager/jmx-context.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.ObjectExistsException: Cache simple already exists
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1420)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
    at org.springframework.aop.framework.ProxyFactoryBean.initializeAdvisorChain(ProxyFactoryBean.java:454)
    at org.springframework.aop.framework.ProxyFactoryBean.getObject(ProxyFactoryBean.java:240)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
    ... 58 more
Caused by: net.sf.ehcache.ObjectExistsException: Cache simple already exists
    at net.sf.ehcache.CacheManager.addCacheNoCheck(CacheManager.java:993)
    at net.sf.ehcache.CacheManager.addCache(CacheManager.java:938)
    at net.sf.ehcache.CacheManager.addCache(CacheManager.java:916)
    at org.springframework.batch.admin.util.SimpleEhCacheInterceptor.afterPropertiesSet(SimpleEhCacheInterceptor.java:77)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
    ... 67 more

I am running my unit test though maven.

[davidgevorkyan]

Hi,

I think it means that something else already registered that cache, probably some other dependency in your project.
Make sure to view the dependency tree and exclude duplications. You can use Maven Enforcer plugin, will help a lot in this case.


Sincerely,
David Gevorkyan

[amique]

I get the same error even if I run the unit test through eclipse. I have 8 test cases for 8 different jobs. When I run them in one go, 5 of them are successfull and rest of them fail. If I run failed test individually, they succeed.


since the problem occurs on creating cacheInterceptor

Caused by: org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'cacheInterceptor' defined in URL [jar:file:/C:/Users/rafiquea/.m2/repository/org/springframework/batch/spring-batch-admin-manager/1.2.1.RELEASE/spring-batch-admin-manager-1.2.1.RELEASE.jar!/META-INF/spring/batch/bootstrap/manager/jmx-context.xml]: Invocation of init method failed; nested exception is net.sf.ehcache.ObjectExistsException: Cache simple already exists

I overrided the beans defined in spring-batch-admin-manager-1.2.1.RELEASE.jar!/META-INF/spring/batch/bootstrap/manager/jmx-context.xml using following.

	<bean id="batchMBeanExporter" class="java.lang.String"/>
	<bean id="mbeanExporter" class="java.lang.String"/>
	<bean id="cacheInterceptor" class="java.lang.String"/>

It seems that it has solved the problem but I am still not sure why the problem is occurring and how did above solved it.
Any help is greatly appreciated.
Thanks