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http://jira.codehaus.org/browse/MJAVADOC-171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Seidel updated MJAVADOC-171:
-----------------------------------
Attachment: 2.2.log
It's not about twice. It's about _all_ modules are built twice for _each_
module. I have removed the maven-surefire-report-plugin from the parent pom (to
show the problem more distinctively) and when I run clean site the following
logs come out with version 2.3 and 2.2 respectively. Notice the vast increase of
{code}
[INFO] Building Unnamed - org.test.forked:...
[INFO] ------------------------------------------------------
[INFO] [xmlbeans:xmlbeans {execution: default}]
[INFO] Nothing to generate.
{code}
parts from 2.2 to 2.3.
> Modules in multi-module projects are "built" too often
> ------------------------------------------------------
>
> Key: MJAVADOC-171
> URL: http://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
> Priority: Critical
> Attachments: 2.2.log, 2.3.log, 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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