[jira] (MNG-5440) default-value on mojo parameter of type collection or array effectively make parameter read-only

["Jason van Zyl (JIRA)" <ji...@codehaus.org>]

     [ https://jira.codehaus.org/browse/MNG-5440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason van Zyl updated MNG-5440:
-------------------------------

    Fix Version/s: Issues to be reviewed for 4.x
    
> default-value on mojo parameter of type collection or array effectively make parameter read-only
> ------------------------------------------------------------------------------------------------
>
>                 Key: MNG-5440
>                 URL: https://jira.codehaus.org/browse/MNG-5440
>             Project: Maven 2 & 3
>          Issue Type: Bug
>            Reporter: Jan Sievers
>             Fix For: Issues to be reviewed for 4.x
>
>         Attachments: mojoParamsBug.zip
>
>
> If you use default-value on collection or array mojo parameters like
> {code}
>     /**
>      * @parameter default-value="foo,bar"
>      */
>     private List<String> param1;
> {code}
> the default value will always win over pom.xml configuration.
> See demo project attached.
> Steps to reproduce:
> 1. {{mvn install}} on the demo project
> 2. {{mvn compile -f test-pom.xml -X -e}} on the demo project
> you can see in the debug log that mojo configuration
> [DEBUG] Configuration: <?xml version="1.0" encoding="UTF-8"?>
> <configuration>
>   <param1 default-value="foo,bar">
>     <param1>non-default value1 param1</param1>
>     <param1>non-default value2 param1</param1>
>   </param1>
>   <param2 default-value="baz">
>     <param2>non-default value1 param2</param2>
>     <param2>non-default value2 param2</param2>
>   </param2>
> </configuration>
> will not be aplied correctly:
> [DEBUG] Configuring mojo 'mojoParamsBug:mojoParamsBug:0.0.1-SNAPSHOT:demo' with basic configurator -->
> [DEBUG]   (f) param1 = [foo, bar]
> [DEBUG]   (f) param2 = [baz]
> [DEBUG] -- end configuration --
> [INFO] param1: [foo, bar]
> [INFO] param2: [baz]
> If default values for srrays/collection are not supported, this should fail the build in step 1. above.
> If they are supported, the configurator should be fixed to actually allow configuring non-default values.

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