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https://issues.apache.org/jira/browse/MNG-8542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17921370#comment-17921370
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Christoph Läubrich commented on MNG-8542:
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I now debugged it again and it seems that -DmyPropert="a, b, c" results in a
list:
{code:java}
["a", " b", " c"]{code}
so it is not trimmed here and i falsely assumed it didn't worked at all but in
fact only the values where not recognized by my mojo due to the trailing white
space!
> Supporting List<String> for parameters given on commandline
> -----------------------------------------------------------
>
> Key: MNG-8542
> URL: https://issues.apache.org/jira/browse/MNG-8542
> Project: Maven
> Issue Type: Improvement
> Reporter: Christoph Läubrich
> Priority: Major
>
> for CLI invocation it is currently not possible to pass parameters as
> property that are lists.
> This often leads to mojos that need to define (and handle) two types of
> parameter one for a CLI invocation and one for more structured use in pom.xml
>
> It would be good to have an exception for the rule that one can't pass
> collections as properties for List<String>/Collection<String>/... by assume
> that these are a comma separated list if given as a property.
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