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From "Dennis Lundberg (JIRA)" <j...@codehaus.org>
Subject [jira] (MSITE-642) An API incompatibility was encountered while executing org.apache.maven.plugins:maven-site-plugin:3.1:site: java.lang.ExceptionInInitializerError: null
Date Sat, 18 Aug 2012 18:44:21 GMT

     [ https://jira.codehaus.org/browse/MSITE-642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dennis Lundberg closed MSITE-642.
---------------------------------

    Resolution: Not A Bug
    
> An API incompatibility was encountered while executing org.apache.maven.plugins:maven-site-plugin:3.1:site:
java.lang.ExceptionInInitializerError: null
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MSITE-642
>                 URL: https://jira.codehaus.org/browse/MSITE-642
>             Project: Maven 2.x and 3.x Site Plugin
>          Issue Type: Bug
>    Affects Versions: 3.1
>         Environment: Using Maven 3.0.4
>            Reporter: David Pilato
>         Attachments: mavensite3.log, pom.xml, pom.xml
>
>
> After updating maven site version from 3.0 to 3.1, I get the following error when running
mvn clean site on my project.
> As far as I can see, the error come from : 
> Caused by: org.apache.commons.logging.LogConfigurationException: 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.getLogConstructor(LogFactoryImpl.java:385)
> 	... 61 more
> Full log is attached.
> I added my parent pom.xml file and the pom.xml file for the first module (which fails).
> Hope this help.
> David.

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