Feature request: Support multiple launchers (entry points)

[donmendelson]

My project is an XML diff/merge utility so I need to have entry points for two methods. Currently, the plugin only supports a single launcher, but I found that jlink does support multiple launchers from the command line. For each launcher, jlink generates a Windows .bat file and a sh script.

To support this functionality, the plugin configuration needs to change to something like:

<launchers>
	<launcher>
		<name>xmldiff</name>
		<module>diff.merge/io.fixprotocol.xml.XmlDiff</module>
	</launcher>
	<launcher>
		<name>xmlmerge</name>
		<module>diff.merge/io.fixprotocol.xml.XmlMerge</module>
	</launcher>
</launchers>

Also, the configuration isn't obvious, even for a single launcher. The name attribute is used as the name of a script to generate. The module attribute gets passed to jlink as a command. It can be of the form module/main-class. Either the attribute could change to command or it could be broken into module + main attributes.

[gunnarmorling]

Hi, so if multiple launchers are supported by jlink itself, then +1 by all means for supporting it in ModiTect, too. Would you be interested in sending in a PR, @donmendelson?