that command completion function shouldn't ever work until you have sucessfully executed the java binary, either that or it has to be in the directory /usr/bin. Find where your java program is installed. Add it to your path in front of your original path. LIke so:

open up .bashrc or .bash_profile and add your directory to the path statement (example java installation directory is /usr/java/jre1.3.1):

PATH=/usr/java/jre1.3.1/bin;$PATH

logout and then back in or simply type this command:

export $PATH

then type

java -v

If this worked then the link that I had provided to you earlier would have solved your problem well before I was able to address your problem again.

RSVP
altoine