How SA tests if ant is installed?

I have ant 1.9.x installed in my machine.

I installed it by hand (I'm Java developer BTW) and is in the path but SA says that isn't there.



How SA tests if ant is installed so I can correct / tweak my ant installation?



BTW I have ANT_HOME env set.



FWIW:

Ubuntu 13.04 / 64

JDK 1.7 / 64



Regards.