> But I am not using URL to connect to the database.

Well.... check your original post and you will find following text there:

"...
type="javax.sql.DataSource" url="jdbc:firebirdsql:<url>"
..."

That's the URL I meant. Or check this URL, it might help:
http://jaybirdwiki.firebirdsql.org/jaybird/doku.php?id=config:tomcat_config

Roman