This file is indexed.

/usr/lib/jvm/java-1.5.0-gcj-5-amd64/bin/jarsigner is in gcj-5-jdk 5.3.1-14ubuntu2.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/jvm/java-1.5.0-gcj-5-amd64/bin/../../../../bin/gjarsigner-5