Sometimes Corrupted pdf are generated and sometimes not ? why ?

[dhruvil.27392]

Whenever I generate PDF reports, they are corrupted. But, luckily i dont know how, but sometimes they are not corrupted and generated perfectly ? why ?

there are no errors or exceptions while generating them.(400 page reports are being generated).

does anyone has experienced this problem or anyone have solved this issue ?

 

i dont understad how can i debug or solve this problem. it is very annoying to keep on generating report until a proper report is generated.

 

[hozawa]

How are you generating your pdf? Are you generating them using Jaspersoft Studio, JasperReports Server, or from your program?

I had a similar experience when my program had a bug. Try generating your pdf from Jaspersoft Studio and if that works, it's your program. 

[dhruvil.27392]

Even I am generating pdf from my Program. but I don't know, where exactly is the bug because there are no errors or exception.

Let me know , what was your bug and and how did you solved it. or you can even check problem in my program.

 

I am creating a file stream. and forwarding it to frontend to download

 

---

public File createPDFReport(File fillReportInFile, String JASPER_FILE_PATH, Map<String, Object> parameters) {

 

/* Get Jasper file from resource folder */

ClassLoader classloader = Thread.currentThread().getContextClassLoader();

InputStream projectInputStream = classloader.getResourceAsStream(JASPER_FILE_PATH);

File generatedFile = fillReportInFile;

/* parameters for reports */

// System.out.println(parameters);

 

/* printing reports */

try {

JasperPrint jasperPrint = JasperFillManager.fillReport(projectInputStream, parameters,

new JREmptyDataSource());

 

/*

* Exporting generated reports as PDF Stream into 'generatedReport'

*/

JasperExportManager.exportReportToPdfStream(jasperPrint, new FileOutputStream(generatedFile));

System.out.println(" REPORT NAME "+generatedFile.getName());

 

} catch (JRException e) {

e.printStackTrace();

}

catch (FileNotFoundException e) {

log.error("ERROR : Unable to create file");

}

 

return generatedFile;

 

}

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[hozawa]

Did you try saving the generated file directly to a disk? If it's web application, it may be a problem with connection being cut off.