/usr/share/maven-repo/org/eclipse/persistence/org.eclipse.persistence.jpa.modelgen.processor/debian/org.eclipse.persistence.jpa.modelgen.processor-debian.jar is in libeclipselink-java 2.5.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/eclipse/persistence/org.eclipse.persistence.jpa.modelgen.processor/debian/../../../../../../java/org.eclipse.persistence.jpa.modelgen.processor-2.5.1.jar