con = L2DatabaseFactory.getInstance().getConnection();
statement = con.prepareStatement("UPDATE character_subclasses SET class_id=? WHERE char_obj_id=? AND class_id=?");
statement.setInt(1, newclass);
statement.setInt(2, getObjectId());
statement.setInt(3, oldclass);
statement.executeUpdate();
DatabaseUtils.closeStatement(statement);
statement = con.prepareStatement("DELETE FROM character_hennas WHERE char_obj_id=? AND class_index=?");
statement.setInt(1, getObjectId());
statement.setInt(2, newclass);
statement.executeUpdate();