Possible to package files as JAR?

[Timothy Potter]

Can we specify a JAR file instead of tgz or zip in the metainfo.xml, i.e.

instead of doing:

<osSpecifics>
  <osSpecific>
    <osType>any</osType>
    <packages>
      <package>
        <type>tarball</type>
        <name>files/solr.tgz</name>
      </package>
    </packages>
  </osSpecific>
</osSpecifics>

can I do:

<osSpecifics>
  <osSpecific>
    <osType>any</osType>
    <packages>
      <package>
        <type>tarball</type>
        <name>files/solr.jar</name>
      </package>
    </packages>
  </osSpecific>
</osSpecifics>

Of course JAR is just ZIP but this would make it more platform
independent because Slider should always be able to extract a JAR
file.