/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ is in libplexus-active-collections-java-doc 1.0~beta2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/AbstractActiveList.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/AbstractActiveMap.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/AbstractActiveSet.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ActiveCollection.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ActiveCollectionManager.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ActiveList.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ActiveMap.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ActiveSet.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/DefaultActiveCollectionManager.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/DefaultActiveList.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/DefaultActiveMap.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/DefaultActiveSet.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/DefaultProtoCollection.html
/usr/share/doc/libplexus-active-collections-java/api/org/codehaus/plexus/collections/class-use/ProtoCollection.html