Too much data received?

PG 7.1.2, jdbc7.1-1.2.jar, RH Linux 6.2 (with upgrade to kernel 2.4.5 [and
library upgrades]):

I've got a table with 5 columns, two of which are type 'text' and intended to
hold XMLized java objects (constructed using the JSX package). However, the
XML tends to be pretty large (and I'll need *much* larger later).

When attempting to insert a row through jdbc, I get an exception which (I assume)
results from the size of the XML:

Too much data was received.
at org.postgresql.PG_Stream.ReceiveString(PG_Stream.java:306)
at org.postgresql.Connection.ExecSQL(Connection.java:532)
at org.postgresql.jdbc2.Statement.execute(Statement.java:294)
at org.postgresql.jdbc2.Statement.executeUpdate(Statement.java:78)
at OCS.database.DbServer.execute(DbServer.java:271)

I seem to remember discussion on a limit in the jdbc driver that might
be causing this, but couldn't find it in the psql-jdbc mail archives.

Am I likely correct in this being the problem? Is there a fix in the
works?

Alternatively (and the reason this is cross posted to pgsql-general):

Is there a better way to store these large XML strings than as a text type?
If so, how? Ultimately, they may be many thousands of bytes long.

Thanks!

--
Steve Wampler- SOLIS Project, National Solar Observatory
swampler(at)noao(dot)edu