OracleAS 10g aborts request when downloading big excel file

Question

I am facing a problem with a servlet that generates a big excel file created with POI. This servlet executes a code similar to this:

    // (...)
    // set headers and names
    response.setContentType("application/vnd.ms-excel");
    response.setHeader("Content-disposition", "attachment;filename="
        + fileName + ".xlsx");

    workbook = new SXSSFWorkbook(flushLimit);
    workbook.setCompressTempFiles(true);

        while (resultSet.next()) {
            // add rows and cell to excel file
            //(...) about 3000000 rows
        }

        logger.info("Writing and closing to temp file");
        workbook.write(fileOutputStream);
        logger.info("Dispose Workbook");
        workbook.dispose();
        logger.info("Closing fileOutputStream");
        IOUtils.closeQuietly(fileOutputStream);

        logger.info("Passing file to servlet outputstream");
        fileInputStream=new FileInputStream(tempFileOutput);

        IOUtils.copy(fileInputStream, response.getOutputStream());

        logger.info("Closing fileInputStream");
        IOUtils.closeQuietly(fileInputStream);
        // delete temporal file
        try {
            tempFileOutput.delete();
        } catch (Exception e) {
            logger.error("Error trying to delete file");
        }

        // close servlet
        response.getOutputStream().flush();
        response.getOutputStream().close();

When servlet takes more than 10 minutes to generate the report and the file sizes is about 100mb it sometimes shows a web saying Internal problem(with no more information) or in other cases the page remains loading. Despite, the excel file is generated correctly but the transmission was cancelled.

Is there a configuration prevent OAS aborts the connection?

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