Tracking JDBC clients in V$SESSION

So, there I am, trying to find out what client a connection to an 8.1.7 DB on Solaris is coming from. Naturally, I "SELECT USERNAME, MACHINE, TERMINAL FROM V$SESSION;" Lo and behold, there is a generic login for the username, column MACHINE in all rows contains "jdbcclient" and TERMINAL contains "unknown". With SQLNet and Net8 these two columns are populated as one would expect. Also, the OSUSER column is generic, so I'm not able to use that info.

Never having used JDBC (yet), is there a setting in the JDBC client to set these? More importantly, if there is, WHY would there be such a setting? And how am I supposed to track this down, aside from SHUTDOWN ABORT (ick)?

TIA,

Rich Jesse                          System/Database Administrator
Rich.Jesse_at_qtiworld.com             Quad/Tech International, Sussex, WI USA