Can't use Junit in eclipse3!?

[liren]

Hi friends:

I want to do a Junit test for my spring app in eclipse3.When I run test, it report error:

org.apache.commons.logging.LogConfigurationExcepti on: org.apache.commons.logging.LogConfigurationExcepti on: org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.) (Caused by org.apache.commons.logging.LogConfigurationExcepti on: org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.))
at org.apache.commons.logging.impl.LogFactoryImpl.new Instance(LogFactoryImpl.java:543)
at org.apache.commons.logging.impl.LogFactoryImpl.get Instance(LogFactoryImpl.java:235)
at org.apache.commons.logging.impl.LogFactoryImpl.get Instance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFa ctory.java:351)
at org.springframework.context.support.AbstractApplic ationContext.<init>(AbstractApplicationContext.java:115)
at org.springframework.context.support.AbstractXmlApp licationContext.<init>(AbstractXmlApplicationContext.java:47)
at org.springframework.context.support.FileSystemXmlA pplicationContext.<init>(FileSystemXmlApplicationContext.java:80)
at org.springframework.context.support.FileSystemXmlA pplicationContext.<init>(FileSystemXmlApplicationContext.java:68)
at org.springframework.context.support.FileSystemXmlA pplicationContext.<init>(FileSystemXmlApplicationContext.java:59)
at lyo.test.dao.TestSonDAOImp.setUp(TestSonDAOImp.jav a:39)
Caused by: org.apache.commons.logging.LogConfigurationExcepti on: org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.)
at org.apache.commons.logging.impl.LogFactoryImpl.get LogConstructor(LogFactoryImpl.java:397)
at org.apache.commons.logging.impl.LogFactoryImpl.new Instance(LogFactoryImpl.java:529)
... 17 more
Caused by: org.apache.commons.logging.LogConfigurationExcepti on: Invalid class loader hierarchy. You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.
at org.apache.commons.logging.impl.LogFactoryImpl.get LogConstructor(LogFactoryImpl.java:385)
... 18 more


I remove common-log package from hibernate library.But the problem is the same. Did someone come across this problem? It is eclipse problem? Thks!
:(

[cwilkes]

I remove common-log package from hibernate library.

If you want to see the gory details of what's going on see http://www.qos.ch/logging/classloader.jsp

For now I would look at this
at lyo.test.dao.TestSonDAOImp.setUp(TestSonDAOImp.jav a:39)
And see what's happening at line 39 of your code. Are you doing anything with log4j? If so try and take it out and see if that helps.

[smccrory]

I've encountered lots of problems with JCL and Websphere, and avoid it like the plague now.