i tenho um site EJB com glassfish 3.1 + JSF para o jasperreport 4.0.1. o site não tem nenhum problema ao transmitir PDF, mas produz PDF em branco enquanto imprime PDF com runReportToPdfStream, abaixo está o snippet de código:

EJB

public class BookEJB {  
    public void printReport() throws ClassNotFoundException, IOException, JRException {
        Map parameterMap = new HashMap();

        FacesContext ctx = FacesContext.getCurrentInstance();
        HttpServletResponse response = (HttpServletResponse) ctx.getExternalContext().getResponse();
        InputStream reportStream = ctx.getExternalContext().getResourceAsStream("/reports/test.jasper");

        ServletOutputStream servletOutputStream = response.getOutputStream();
        servletOutputStream.flush();

        response.setContentType("application/pdf");
        JasperRunManager.runReportToPdfStream(reportStream, servletOutputStream, parameterMap);

        servletOutputStream.flush();
        servletOutputStream.close();
        ctx.responseComplete();
}}

test.jrxml - um relatório simples sem conexão SQL

<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="test" pageWidth="800" pageHeight="1200" columnWidth="555" leftMargin="25" rightMargin="25" topMargin="30" bottomMargin="30">
    <property name="ireport.zoom" value="1.0"/>
    <property name="ireport.x" value="0"/>
    <property name="ireport.y" value="0"/>
    <queryString>
        <![CDATA[]]>
    </queryString>
    <pageHeader>
        <band height="100">
            <staticText>
                <reportElement x="0" y="0" width="285" height="36"/>
                <textElement>
                    <font size="24" isBold="true"/>
                </textElement>
                <text><![CDATA[Report of Testing]]></text>
            </staticText>   
        </band>
    </pageHeader>
    <detail>
        <band height="200">
            <staticText>
                <reportElement x="0" y="0" width="374" height="48"/>
                <textElement>
                    <font size="18"/>
                </textElement>
                <text><![CDATA[If you don't see this, it didn't work blah blah blah.... ]]></text>
            </staticText>
        </band>
    </detail>
    <pageFooter>
        <band height="100"/>
    </pageFooter>
</jasperReport>

no log de erro no glassfish ao gerar este relatório no JSF, mas apenas o PDF em branco foi mostrado. Por favor, ajude, deixe-me saber se você precisar de mais informações para a anális

Steven