How to send an e-mail message with a PDF attachment and an inline image

PdfMailServiceImpl.java

  private void send(String toAddress, String subject, String text, byte[] attachment) {
    JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
    mailSender.setHost(mailHost);

    MimeMessage message = mailSender.createMimeMessage();
    MimeMessageHelper msgHelper = new MimeMessageHelper(message, true);
    msgHelper.setSubject(subject);
    msgHelper.setFrom(fromAddress);
    msgHelper.setTo(toAddress);

    Multipart multipart = new MimeMultipart();

    MimeBodyPart messageBodyPart = new MimeBodyPart();
    messageBodyPart.setText(text, "UTF-8", "html");
    multipart.addBodyPart(messageBodyPart);

    MimeBodyPart imagePart = new MimeBodyPart();
    imagePart.attachFile(new File(PdfMailServiceImpl.class.getClassLoader().getResource("images/Energy_Office-logo.png").toURI()));
    imagePart.setContentID("<" + "101" + ">");
    imagePart.setDisposition(MimeBodyPart.INLINE);
    multipart.addBodyPart(imagePart);

    MimeBodyPart pdfPart = new MimeBodyPart();
    DataSource pdfSrc = new ByteArrayDataSource(attachment, mime);
    pdfPart.setDataHandler(new DataHandler(pdfSrc));
    pdfPart.setFileName(formFilename);
    multipart.addBodyPart(pdfPart);

    message.setContent(multipart, "text/html");

    message.saveChanges();

    mailSender.send(message);
  }