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https://jira.codehaus.org/browse/MJAVADOC-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=276472#comment-276472
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Stefan Seidel commented on MJAVADOC-171:
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Hmm.I have created a test project and attached it to this issue long time ago.
I've attached the log files and explained (hopefully clearly) what the
difference is and what the problem is. Now what else is there what would be
different for a new issue? And what makes you sure that you have fixed this
issue?
The numbers I provided are: extract the "mvnexec.zip", run mvn site, count the
number of xmlbeans invocations. I hope this is now reproducible.
> Modules in multi-module projects are "built" too often
> ------------------------------------------------------
>
> Key: MJAVADOC-171
> URL: https://jira.codehaus.org/browse/MJAVADOC-171
> Project: Maven 2.x Javadoc Plugin
> Issue Type: Bug
> Affects Versions: 2.3
> Environment: Maven 2.0.8, Linux
> Reporter: Stefan Seidel
> Assignee: Herve Boutemy
> Priority: Critical
> Fix For: 2.8
>
> Attachments: 2.2.log, 2.3.log, mjavadoc171.patch, mvnexec.zip
>
>
> In a multi-module project, all modules are "built" twice for each module.
> This leads to huge performance problems when many modules are in a project.
> In the attached sample project, the xmlbeans plugin is executed 27 times for
> a project with one parent module and two submodules. 18 of these executions
> can be attributed to the javadoc plugin. With version 2.2, only 3 invocations
> (once for each project) are caused by the javadoc plugin.
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