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https://issues.apache.org/jira/browse/ARCHETYPE-490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16331065#comment-16331065
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Chris Snyder commented on ARCHETYPE-490:
----------------------------------------
StackOverflow post discussing this problem (note that this bug doesn't occur in
batch mode):
https://stackoverflow.com/questions/40136085/maven-archetype-generate-a-default-value-for-requiredproperty-from-a-value-of-a
> Required property default value incorrect when using system property
> --------------------------------------------------------------------
>
> Key: ARCHETYPE-490
> URL: https://issues.apache.org/jira/browse/ARCHETYPE-490
> Project: Maven Archetype
> Issue Type: Bug
> Components: Generator, Plugin
> Affects Versions: 2.3, 2.4
> Reporter: Christopher Rowland
> Priority: Major
> Labels: easyfix, newbie, patch
> Attachments: ARCHETYPE-490.patch
>
>
> When performing a generation while passing in artifactId, groupId, or version
> as a system property, required property default values using velocity
> expressions are evaluated incorrectly.
> As an example, I have an archetype with groupId com.apache and artifactId
> automation-archetype. If I attempt to generate using the following command:
> mvn archetype:generate -DarchetypeGroupId=com.apache
> -DarchetypeArtifactId=automation-archetype -DartifactId=hello-world-automation
> And I have a required property defined as:
> <requiredProperty key="artifactPackage">
> <defaultValue>${artifactId.replace("-", "_")}</defaultValue>
> </requiredProperty>
> Then the resulting property is evaluated to automation_archetype instead of
> hello_world_automation.
> This changed from version 2.2 to 2.3 by a patch introduced in ARCHETYPE-397.
> Proposed additional patch is attached.
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