My JSP page starts with declaration <%@ page contentType = "text/html; charset=windows-1250" pageEncoding="Cp1250"%>
and its marked as error with message "poczta is already defined in SimplifiedJSPServlet". When a blank line is added
before the declaration an error mark disappears ;) The page includes a file that contains <jsp:useBean id="poczta"
scope="application" class="pl.Poczta"/>. See attachments.