DBRE: Oracle DB introspection hangs

[Macs]

Hello..
after some work i've got working the oracle driver (10.2.0.1) on SpringROO 1.4,
now after I give this command:
database introspect --schema
and then press TAB i get the list of schemas available.
But after I choose one and give return the command hangs indefinitely, never ending
with a error o a correct answer.
Any Ideas?

My internet connection is behind a proxy but seems to work right,
at start roo connect internet for upgrades ad signal:
0 upgrades available (plus 29 upgrades not visible due to your version stability setting of RELEASE)