'Build FOP' instructions incomplete

Hi all,

TL;DR: The 'Build FOP' instructions page is incomplete - is it worth reporting a JIRA? How do I get a JIRA account?

I'm just starting with FOP and followed the build instructions at:
https://xmlgraphics.apache.org/fop/2.8/compiling.html

The ant build failed due to a missing maven dependency which isn't mentioned on the page. Is that worth a JIRA ticket to get that fixed? I've done a search of JIRA and don't see an existing ticket. I've checked out the docs and I would need to apply for a JIRA account (which I will need later anyway) - how do I apply?

Thanks,
Dave