Nathan,
the Java tool is just that, it is a tool that display's Netbackups data to you; the users, the only logs for java are in /usr/openv/java/logs and these logs are just connectivity type logs.
all the logs you need are in
/usr/openv/netbackup/logs
/veritas/openv/volmgr/debug/dqts
/veritas/openv/logs
/usr/openv/logs/vnetd
/usr/openv/logs/vopied
If you need info on the tape bar codes list then try what Ankur say's, or the like you posted.
Cool?
Great
JD