I generate a PDF document within a servlet.
I get the following exception :

ExceptionConverter: java.lang.NullPointerException
at com.lowagie.text.pdf.PdfDocument.close(Unknown Source)
at com.lowagie.text.Document.close(Unknown Source)
at net.sf.jasperreports.engine.export.
JRPdfExporter.exportReportToStream(JRPdfExporter.java:416)
at net.sf.jasperreports.engine.export.
JRPdfExporter.exportReport(JRPdfExporter.java:241)
at net.sf.jasperreports.engine.
JasperExportManager.exportReportToPdf(JasperExportManager.java:188)

It only occurs on Websphere 5.1 on windows XP. I never had a single problem in
the WSAD environment.

I use jasperreports-0.6.8.jar and itext-1.3.jar but i have the same thing with
the 0.6.6 version of jasperreport and any other version of itext (1.01).

Notice :
- i have no security manager restriction about 'getCLassLoader' on the
application server.
- i have tried to generate a pdf file before sending the response to the browser
but the same thing happened.

Thanks for any kind of help.



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