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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.
Created attachment 53850 [details] msg with error
Created attachment 53851 [details] no error
Created attachment 53855 [details] Another similar problem with SimplifiedJSPServlet
*** This issue has been marked as a duplicate of 122214 ***