/usr/share/maven-repo/javax/servlet/servlet-api/debian/servlet-api-debian.jar is in libservlet2.5-java 6.0.45+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/javax/servlet/servlet-api/debian/../../../../../java/servlet-api-2.5.jar