Spring issue with jasper reports - document root element jasperreport must match doctype root null

I need to generate reports in my project which is being developed using Spring 3. For that I created the report structure using iReport 5.6 (the latest one) and then by using that jrxml file, I generate the pdf file of that report.

this is my code for that.

Map<String, Object> parameters = new HashMap<String, Object>();
parameters.put("projectName", projectName);
parameters.put("lotNo", lotNo);
parameters.put("agreementNo", agreementNo);
parameters.put("installmentAmount", installmentAmount);
parameters.put("payableDate", payableDate);
parameters.put("lastDate", lastDate);
parameters.put("address", address);

try {

    // compiles jrxml
    JasperCompileManager.compileReportToFile("installmentReminder.jrxml");
    // fills compiled report with parameters and a connection
    JasperPrint print = JasperFillManager.fillReport(reportName + ".jasper", parameters, new JREmptyDataSource());
    // export report to pdf
    JasperExportManager.exportReportToPdfFile(print, reportName+".pdf");
    //open pdf
    if (Desktop.isDesktopSupported()) {
        try {
            File myFile = new File(reportName+".pdf");
            Desktop.getDesktop().open(myFile);
        } catch (IOException ex) {
            // no application registered for PDFs
            System.out.println("EXCEPTION: while opening pdf = "+ex);
        }
    }


} catch (Exception e) {
            //throw new RuntimeException("It's not possible to generate the pdf report.", e);


}

I tried generating the required pdf file outside the Spring environment and it worked fine and generated the file. But in Spring environment, it gives me this exception

net.sf.jasperreports.engine.JRException: org.xml.sax.SAXParseException: Document root element "jasperReport", must match DOCTYPE root "null"

I searched through the web and found there can be a xml issue. this is a similar kind of issue and they say that the issue is with xml and the versions of jasper and Spring. But I cannot understand what is wrong in my case.

definition of jrxml file :

<jasperReport xmlns="http://ift.tt/1bXYvZE" xmlns:xsi="http://ift.tt/ra1lAU" xsi:schemaLocation="http://ift.tt/1bXYvZE http://ift.tt/18OQfHh" name="installmentReminder" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="7076bf4f-0d49-4132-9890-1b6559c3ed21">

spring libraries :

Please help me to solve this issue please. Thanks in advance !

Edit :-

why I am saying this issue is related with Spring is this;

• I ran the same code in Eclipse IDE in a JavaSEproject and it worked perfet.


• When I try to run the same code in Spring Tool Suit IDE, it gave me the above exception. (I use the same libraries in both cases)

Any one please help me to understand whether there is a conflict between Spring version and Jasper version.