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From "Karl Heinz Marbaise (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MDEP-623) Need to be able to tell Maven to not bother trying to download particular sources jars
Date Thu, 19 Jul 2018 20:43:00 GMT

    [ https://issues.apache.org/jira/browse/MDEP-623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549833#comment-16549833
] 

Karl Heinz Marbaise commented on MDEP-623:
------------------------------------------

Sorry to say that but you seemed to be misunderstanding the concept here. The build only takes
binaries (jar's) as dependencies and will never use source packages nor download them cause
they are not needed. If you like to debug use the IDE which can simply being configured to
do so..

So coming to your point about: Based on your example pom you have told Maven to download the
sources so as [~michael-o] already described: Where is the issue? Just do not download source
packages during a build where it is never needed...which means remove the usage of maven-dependency-plugin
as in your example...

Another question: Why are trying to download the source package during your build? If you
have repository manager in your company which I hope you have this is useless. The first time
someone will try to get them via the IDE they will be downloaded to the repository manager
and cached there..during the build of your product they are simply not needed...

So the final answer would be: Removed the maven-dependency-plugin with the request to download
source packages during your build...except you have other reasons which you haven't expressed
yet...

This will drop down your build time...

> Need to be able to tell Maven to not bother trying to download particular sources jars
> --------------------------------------------------------------------------------------
>
>                 Key: MDEP-623
>                 URL: https://issues.apache.org/jira/browse/MDEP-623
>             Project: Maven Dependency Plugin
>          Issue Type: Improvement
>          Components: sources
>            Reporter: Jim Showalter
>            Priority: Major
>         Attachments: pom.xml
>
>
> Sources jars are optional, so Maven has no way of knowing if a project decided to publish
a sources jar. Even if the code and released jar hasn't changed since 1998, somebody might
edit the build pom to generate a sources jar.
> This causes Maven to attempt to fetch non-existent sources jars in perpetuity.
> Maven waits several seconds when attempting to fetch a sources jar before giving up.
> We have 142 sourceless jars on our build path.
> The wait time multiplied by 142 winds up adding 11 minutes to our builds.
> We don't want to shut off sources jars, because, when they exist, developers use them
to step through code. But we don't want Maven to keep trying to download sources jars we know
don't exist and are pretty sure will never exist.
> Something like a section in settings.xml for ignoreSourcesJars that allowed us to list
the ones to ignore would be great.
> I'm happy to help with this if someone can point me to where in the code a change like
this needs to be made.



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