[email protected] wrote:
> Hi,
>  
> Using Maven 2.1.0 with jdk 1.6 unders Windows XP.
>  
> Problem is that with site:stage command fails with the following error
>  
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] null
> Invalid class loader hierarchy.  You have more than one version of
> 'org.apache.c
> ommons.logging.Log' visible, which is not allowed.
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.ExceptionInInitializerError
>         at
> org.apache.maven.plugin.javadoc.JavadocUtil.fetchURL(JavadocUtil.java
> :730)

Hint: Javadoc plugin

> I have commons-logging-1.1.1 added as a dependency in the projects.
> I got this problem with usage of site-plugin version 2.1 which probably
> uses commons-logging-1.0.4

The site plugin has a transitive dependency on commons-logging:1.0.4,
but that shouldn't be a problem.

> With the previous plugin version it was working fine.
>  
> I am having a flat multi-module maven project structure.
>  
> Any help to exclude this dependency or work-around my problem is
> appreciated.

Please run this command on your project to find out which dependencies
come from where:

mvn dependency:tree

>  
> Regards
> Subir
>  
>  
>  
> 
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-- 
Dennis Lundberg

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