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https://issues.apache.org/jira/browse/TRINIDAD-2042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12997924#comment-12997924
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Scott O'Bryan commented on TRINIDAD-2042:
-----------------------------------------
This was due to some local references to Log4J and commons logging in the
tagdoc plugin. If those are removed, everything seems to work fine. I have
checked the changes into the 2.0 plugins branch and am working on getting the
fix to reference the snapshot checked into trinidad trunk. This will mean that
a new version of the plugins will need to be released before the next version
of trinidad.
> Trinidad TagDoc report plugin does not allow mvn site:site target to run
> ------------------------------------------------------------------------
>
> Key: TRINIDAD-2042
> URL: https://issues.apache.org/jira/browse/TRINIDAD-2042
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Plugins
> Reporter: Scott O'Bryan
> Assignee: Scott O'Bryan
>
> When running 'mvn site:site' on main, the following error is thrown:
> org.apache.commons.logging.LogConfigurationException:
> org.apache.commons.logging.LogConfigurationException:
> 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. (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.) (Caused by
> org.apache.commons.logging.LogConfigurationException:
> 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. (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.newInstance(LogFactoryImpl.java:543)
> at
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
> at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:370)
> at org.apache.commons.digester.Digester.<init>(Digester.java:304)
> at
> org.apache.myfaces.trinidadbuild.plugin.tagdoc.TagdocReport.readIndex(TagdocReport.java:1673)
> at
> org.apache.myfaces.trinidadbuild.plugin.tagdoc.TagdocReport.processIndex(TagdocReport.java:1592)
> at
> org.apache.myfaces.trinidadbuild.plugin.tagdoc.TagdocReport.executeReport(TagdocReport.java:105)
> ....
> It looks like there is an incompatible logger version or the logger has been
> declared multiple times in the environment. This must be fixed before the
> maven site can be generated.
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