Is the Gradle witness plugin allowed?



I would like to integrate in some apps. The plugin compairs hashsums of downloaded gradle depencies with a list in the gradle file. Because the plugin can be manipulated itself, it needs to be in the repo as jar file.
Are jar files allowed as depency in F-Droid?
Transportr also uses this plugin and I couldn’t see, that it’s removed for fdroid builds.


Gradle Witness does not verify plugins and this makes its use quite questionable.

JARs are prohibited by the inclusion policy, but fdroidserver won’t throw an error if you add one.