current version is 4.5.0-M3 https://commons.apache.org/proper/commons-collections/changes-report.html
It's still available on Gentoo mirrors.
Version: 4.5.0 finally released. See https://downloads.apache.org/commons/collections/source/ " commons-collections4-4.5.0-src.tar.gz 2025-04-22 18:02"
(In reply to Volkmar W. Pogatzki from comment #2) > Version: 4.5.0 finally released. > See https://downloads.apache.org/commons/collections/source/ > " commons-collections4-4.5.0-src.tar.gz 2025-04-22 18:02" For apache.org stuff, let's use https://archive.apache.org/dist/commons/collections/source/ as a backup entry (2nd entry) in SRC_URI. See this too: commit 16bbb4ba9ade8f130bfb7039ba7512a79f7f0a2e Author: Sam James <sam@gentoo.org> Date: Mon Apr 21 12:44:10 2025 +0100 dev-libs/xerces-c: add fallback SRC_URI Per https://dlcdn.apache.org/ > The directories linked below contain current software releases from the > Apache Software Foundation projects. Older non-recommended releases can > be found on our archive site. Closes: https://bugs.gentoo.org/946318 Signed-off-by: Sam James <sam@gentoo.org> We should do this for all apache.org projects.