/usr/share/doc/libmaven-repository-builder-java/api/package-list is in libmaven-repository-builder-java-doc 1.0~alpha2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | org.apache.maven.shared.repository
org.apache.maven.shared.repository.model
org.apache.maven.shared.repository.utils
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