try {
JRPdfExporter jrPdfExporter = new JRPdfExporter();
jrPdfExporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
jrPdfExporter.setParameter(JRExporterParameter.OUTPUT_STREAM, pdfOutputStream);
jrPdfExporter.exportReport();
} catch (JRException e) {
throw new JRException("Error occurred exporting PDF report ", e);
}
return pdfOutputStream;