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Posted to users@maven.apache.org by su...@wipro.com on 2010/01/20 15:01:52 UTC
Multiple commons-logging versions break site:stage for multi-module projects
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)
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
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.
Regards
Subir
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Re: Multiple commons-logging versions break site:stage for multi-module
projects
Posted by Dennis Lundberg <de...@apache.org>.
subir.sasikumar@wipro.com 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
>
>
>
>
> Please do not print this email unless it is absolutely necessary.
>
> The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.
>
> www.wipro.com
>
--
Dennis Lundberg
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