/usr/share/java/jasperreports-javaflow.jar is in libjasperreports-java 4.1.3+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/jasperreports-javaflow-4.1.3.jar
/usr/share/java/jasperreports-javaflow-4.1.3.jar