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https://jira.codehaus.org/browse/MJAVADOC-308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=332209#comment-332209
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Herve Boutemy commented on MJAVADOC-308:
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yes, really strange
I had a look at your poms, and you're using the new configuration format, but
it's not recommended: I added some doc about it in last plugin version
http://maven.apache.org/plugins/maven-site-plugin/maven-3.html#Configuration_formats
this can explain why some options are taken into account when running mvn
site:site but not mvn:javadoc:javadoc
but this doesn't explain why giving memory to javadoc causes OOME :)
> OutOfMemoryError
> ----------------
>
> Key: MJAVADOC-308
> URL: https://jira.codehaus.org/browse/MJAVADOC-308
> Project: Maven Javadoc Plugin
> Issue Type: Bug
> Affects Versions: 2.6.1, 2.7
> Environment: Maven 3 on MacOS 10.6, Maven 3 on Hudson on Windows
> Reporter: Pieter
>
> I have a 12 module project (+parent) containing not really much code (140
> classes). When running Maven site on this project, it fails with an
> OutOfMemoryError. When I run the javadoc plugin with a reportset containing
> javadoc, test-javadoc and aggregate is runs well with a maximum heap size of
> 512M. When I run it with a reportset containing javadoc, test-javadoc and
> test-aggregate also. But when I add all 4 reports to my report set, I get an
> OutOfMemoryError, even when setting the maximum heap size to 1.5G. Just
> before the error occurs I see my heap usage growing rapidly.
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