The 'modules' report does not support 'url' elements using properties.
I've created an IT at r1481042 which looks okay to me.
Could you confirm?
Patch updating the IT to demonstrate the issue. Applying this patch and executing 'mvn verify -Prun-its', the generated 'target/it/mpir-229/target/site/modules.html' file contains the following broken link.
thanks for that patch; with it I could confirm the issue.
Fixed in r1481311