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https://issues.apache.org/jira/browse/MJAR-238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16479507#comment-16479507
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Roberto Araujo commented on MJAR-238:
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Can I help with this issue? If so, how can I proceed?
> Allow setting of module main class
> ----------------------------------
>
> Key: MJAR-238
> URL: https://issues.apache.org/jira/browse/MJAR-238
> Project: Maven JAR Plugin
> Issue Type: Improvement
> Environment: Java9 build 9+176, MacOS
> Reporter: Machiel Groeneveld
> Assignee: Robert Scholte
> Priority: Minor
>
> When a Java9 module is created using the maven-jar plugin, setting the
> manifest/mainclass does not set the module main class. Therefore the module
> is not executable without specifying the main class. Executing the module
> using java -m domain.app gives the following error:
> _module jigsaw.app does not have a MainClass attribute_
> According to the module specification a module (jar) can have a main class
> set. If I understand correctly it's inside the module-info.class as a
> property called ModuleMainClass
> When using the JDK9 jar command it will update the jar and the
> module-info.class.
> {noformat}
> -e, --main-class=CLASSNAME The application entry point for stand-alone
> applications bundled into a modular, or
> executable,
> jar archive
> {noformat}
> I guess it would make sense to have this as a separate configuration item
> since the mainclass entry in the manifest file is not needed in 'module mode'
> and vice versa.
> If this is a duplicate of another issue, please close this one, I couldn't
> find any existing issues related to this.
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