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From "Parag Mehta (JIRA)" <>
Subject [jira] Commented: (MJAVADOC-268) performance problem in AbstractJavadocMojo.getModulesLinks()
Date Thu, 08 Jul 2010 14:32:32 GMT


Parag Mehta commented on MJAVADOC-268:

The issue still exists in 2.7 and does not seem to be fixed.  When running in a reactor, this
problem causes maven to infinitely recurse.  2.5 seems to work ok though.

> performance problem in AbstractJavadocMojo.getModulesLinks()
> ------------------------------------------------------------
>                 Key: MJAVADOC-268
>                 URL:
>             Project: Maven 2.x Javadoc Plugin
>          Issue Type: Bug
>    Affects Versions: 2.6
>         Environment: Apache Maven 2.2.0 (r788681; 2009-06-26 15:04:01+0200)
> Java version: 1.6.0_13
> Java home: /home/mkleint/javatools/jdk1.6.0_13/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "linux" version: "" arch: "i386" Family: "unix"
>            Reporter: Milos Kleint
>            Assignee: Vincent Siveton
>            Priority: Critical
>             Fix For: 2.6.1
>         Attachments: javadoc.patch
> The getModulesLinks() method is unacceptably slow under certain conditions:
> 1. project's url is defined
> 2. one or more projects in reactor do not have any java sources and are not of "pom"
> For such projects the apidocs/ output folder is never created resulting in repeated invokation
of a forked javadoc goal. It's more severe with high number of modules in reactor and high
number of modules without any java sources.
> as an example checkout "hg clone"
> The immediate problem is in the apidocsFile.exists() condition that re-triggers the forked
invokation. The attached patch fixes that. However it looks suspicitions that the method is
being called repeatedly for each module at all. Maybe the aborting condition at the start
of the method body is wrong (I was not able to decypher that)
> workaround is to use 2.5 or not to specify the url in pom.xml or set the detectOfflineLinks
parameter to "false".

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