Roo shell does not give output

When I use the Roo shell I don't see any of the very important output. Here is an unedited copy of my recent shell session:

roo> version
roo> hint
roo> help
** Type 'hint' (without the quotes) and hit ENTER for step-by-step guidance **

roo> blahblah
Command 'blahblah' not found (for assistance press TAB or type "hint" then hit ENTER)
roo>

As you can see it will print purple things out, but not green things. hint should have printed a bunch of lines of stuff and it did nothing

The Roo shell does seem to be working otherwise. I can run scripts and generate stuff just fine, but I don't know if I made an error because those get printed in the green kind of message.

I am using Ubuntu 8.10 and I started using Roo 1.0.0 RC2 and just upgraded to RC 3, although that didn't fix the problem.

Please double-check $JAVA_HOME points to a Sun JDK (not OpenJDK). There are known issues with OpenJDK regarding console output.

yes, that is the problem: I have java home pointed at openjdk.
Thanks!