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https://jira.codehaus.org/browse/MNG-3131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Scholte reopened MNG-3131:
---------------------------------
http://maven.apache.org/guides/plugin/guide-java-plugin-development.html#Properties
tells me that {{Properties}} acts a bit different than a {{Map}}.
> Error message is misleading if a missing plugin parameter is of a type like
> List
> --------------------------------------------------------------------------------
>
> Key: MNG-3131
> URL: https://jira.codehaus.org/browse/MNG-3131
> Project: Maven 2 & 3
> Issue Type: Bug
> Reporter: Dennis Lundberg
> Assignee: Robert Scholte
> Fix For: 3.1.0
>
>
> Here is a sample output I got when I was working on the changes-plugin:
> {code}
> [INFO] One or more required plugin parameters are invalid/missing for
> 'changes:announcement-mail'
> [0] inside the definition for plugin: 'maven-changes-plugin'specify the
> following:
> <configuration>
> ...
> <smtpHost>VALUE</smtpHost>
> </configuration>.
> [1] inside the definition for plugin: 'maven-changes-plugin'specify the
> following:
> <configuration>
> ...
> <toAddresses>VALUE</toAddresses>
> </configuration>.
> {code}
> Notice the second parameter toAdresses. It is of the type List, so the
> correct configuration would be something like this
> {code}
> <configuration>
> ...
> <toAddresses>
> <toAddress>VALUE</toAddress>
> </toAddresses>
> </configuration>.
> {code}
> I haven't found where in the code base the handling of List/Map/Array
> parameters is. That code could probably be borrowed/reused in
> maven-core/src/main/java/org/apache/maven/plugin/PluginParameterException.java
> which is the class responsible for formating the above messages.
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