[Bug] ResultSet#getMetaData() returns null

Hello all,

ResultSet#getMetaData() is returning null, using the current CVS driver,
if called before ResultSet#next()

<snippet>
        db.setAutoCommit(false);

        CallableStatement st = db.prepareCall( "{ ? = call doit () }" );
        st.registerOutParameter(1, Types.OTHER);

        st.execute();
        ResultSet rs = (ResultSet) st.getObject(1);

        ResultSetMetaData md = rs.getMetaData();
        System.out.println( "Column count = " + md.getColumnCount() );
    //Exception in thread "main" java.lang.NullPointerException
    //at org.postgresql.jdbc2.AbstractJdbc2ResultSetMetaData.getColumnCount(AbstractJdbc2ResultSetMetaData.java:33)
    //at JDBCTest.main(JDBCTest.java:16)

        rs.next();
</snippet>

Regards,
Doug