Accessing BIT(n) type from Java

Hi all,

I need to use BIT(n) type for storing large bitmaps into database and
access them from Java. But when I am retrieving data into Java via JDBC
only null (ie no data) is returned and I receive error mesage saying
something like that I have no conversion or mapping for BIT type
although Java's java.util.BitSet perfectly matches PostgreSQL's BIT(n)
type. Is it possible to get data with BIT(n) type into Java. And if yes,
how?

Thanks.

pa