JDBC Interfaces

Hi, I try to run  this example:
    String query = "INSERT INTO requestTable VALUES (?,?);";    int i = 1;
    PreparedStatement ps =
(PreparedStatement)connection.prepareStatement(query);    ps.setInt(1,i);    ByteArrayInputStream bis = new
ByteArrayInputStream(b);   ps.setBinaryStream(2,bis,bis.available());    ps.executeUpdate();        // execute the
insertstatement    System.out.println("ejecuta");    ps.close();                // close the prepared statement
bis.close();
    where de segundo parameter is a oid type.
   The response is:

   SQL Exception: InputStream as parameter not supported
   What tipes of InputStream are supported?   Where can I find more information?
   Thanks, Gabi.