Java Database Connectivity (JDBC)

I'm having an issue trying to update the jdbc driver from 10.1.0.2.0 to 10.2.0.3.0 to access an Oracle 8.1.7.4 instance. Using this code I'm getting the following exception, any ideas how to fix it?

Thanks,

Johann

Connection c = null;
try {
Driver dr = new oracle.jdbc.OracleDriver();
DriverManager.registerDriver(dr);
Properties props = new Properties();
props.put("user", "congiromsr");
props.put("password", "the password");
String url = "jdbc:oracle:thin:@cholguaco:1533:lobo";
c = dr.connect(url, props);
System.out.println("The driver is "
+ c.getMetaData().getDriverVersion());
System.out.println("The DBMS is "
+ c.getMetaData().getDatabaseProductVersion());
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
c.close();
} catch (Exception ignore) {
}
}

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-12705: invalid or unknown NLS parameter value specified

at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:283)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:278)
at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:791)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:362)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:439)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at TestClass.main(TestClass.java:14)