Look at e.g. /usr/bin/jserver

It is setuid to user "wnn". So are three other related binaries. Is this
intentional? I
hope not - jserver is very insecure. Quick inspection shows a buffer
overflow to
a static buffer when using the "-f" command line flag.

Note that a compromise of user "wnn" is very dangerous - it could assist
compromise
root because the "jserver" daemon runs as euid=wnn, ruid=root