Some java code returns a null resultset from 10.2.0.1 DB, but works w/ 9.2

I am a Java noob guys, but we have java code the calls an Oracle Function. This code is unchanged from what successfully runs against an Oracle 9.2 database returning, in this case, one row from the database. A ref cursor is used. When the same Java code calls the same ref cursor function from a 10.2.0.1 database, a null resultset occurs. The function correctly returns a single row when executed by the same database user via sql-plus. So it must be a java thing. Does the jdbc driver need to be upgraded to correctly run against a 10.2 database? And is this null resultset type of anomaly a potential result of having a wrong version of ojdbc14.jar? Nothing else has changed except pointing the code to the same package and tables in a 10.2 database.
Thanks in advance for your comments.
Phil McDermott

I realize now that this is the wrong forum to post in, but I was linked here from a google search on the issue.
I downloaded the 10.2.0.1 ojdbc14.jar from oracle, but the problem persists.
yeesh! now what?

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