In Java, how do i export a PDF/A using Jasper Reports Libraries?

Question

i've been trying to tweak my PDFexport method, i'm trying to produce a PDF/A instead. I've followed some answers here on SO, but i haven't been able to make it work. Here's my previous code(exports standard pdf):

protected byte[] getPdfExport(List<JasperPrint> jasperPrint) {
    byte[] ret = null;

    ByteArrayOutputStream outStream = new ByteArrayOutputStream();

    SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
    configuration.setPermissions(PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_PRINTING);


    JRPdfExporter exporterPDF = new JRPdfExporter();
    try {
        exporterPDF.setExporterInput(SimpleExporterInput.getInstance(jasperPrint));
        exporterPDF.setExporterOutput(new SimpleOutputStreamExporterOutput(outStream));
        exporterPDF.setConfiguration(configuration);
        exporterPDF.exportReport();

        // chiusura dei bytes
        outStream.flush();
        ret = outStream.toByteArray();
        outStream.close();
    } catch (Exception e) {
        LOGGER.error(e.getMessage(), e);
    }

    return ret;
}

These are the changes i've made following other answers here on this website:

protected byte[] getPdfExport(List<JasperPrint> jasperPrint) {
    byte[] ret = null;

    ByteArrayOutputStream outStream = new ByteArrayOutputStream();

    SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
    configuration.setPermissions(PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_PRINTING);
            configuration.setPdfaConformance(PdfaConformanceEnum.PDFA_1A);           
            configuration.setIccProfilePath("C://Users//MyUser//Download//");


    JRPdfExporter exporterPDF = new JRPdfExporter();
    try {
        exporterPDF.setExporterInput(SimpleExporterInput.getInstance(jasperPrint));
        exporterPDF.setExporterOutput(new SimpleOutputStreamExporterOutput(outStream));
        exporterPDF.setConfiguration(configuration);
        exporterPDF.exportReport();

        // chiusura dei bytes
        outStream.flush();
        ret = outStream.toByteArray();
        outStream.close();
    } catch (Exception e) {
        LOGGER.error(e.getMessage(), e);
    }

In my local path, i have an .icc file. However, it doesn't work, i get the following expection:

net.sf.jasperreports.engine.JRException: Input stream not found at : myPath

What am i missing? Is it because i should add the .icc file inside the project, and thus not locally? Or am i missing something in my code? Thank you.