/usr/share/doc/libglpk-java/glpk-java-javadoc.jar is in libglpk-java 1.0.18-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libglpk-java/glpk-java-javadoc-4.47.jar
/usr/share/doc/libglpk-java/glpk-java-javadoc-4.47.jar