Dear maintainer(s), I noticed that package javamorph recommends pdfviewer, which is currently not available in unstable. The virtual package is called "pdf-viewer", so it should be change to that. On the other hand, the current Recommends is: Recommends: xdg-utils, pdfviewer | evince The virtual package should be the last in a group, so it should be: "evince | pdf-viewer" (if users have another package providing pdf-viewer, nothing will be installed. If they don't have any: evince will be installed). Thank you for your time, PS[0]: I am developing a tool to detect such issues: https://salsa.debian.org/carlespina/check-relations . Reports are manually reviewed before submission. If you would prefer not to receive such reports (for specific packages, all of your maintained packages, etc.), please let me know. Any other feedback is welcomed as well. PS[1]: more information available in https://salsa.debian.org/carlespina/check-relations/-/blob/main/README.md and https://salsa.debian.org/carlespina/check-relations/-/blob/main/docs/bug-report-extra-info.md