/usr/share/maven-repo/net/sourceforge/jexcelapi/jxl/2.6.12/jxl-2.6.12.jar is in libjexcelapi-java 2.6.12-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/net/sourceforge/jexcelapi/jxl/2.6.12/../../../../../../java/jxl-2.6.12.jar