Either every recipient is matching or neither of them.
Exception anException = null;
try {
MimeMessage message = mail.getMessage();
Object content;
/**
* if there is an attachment and no inline text,
* the content type can be anything
*/
if (message.getContentType() == null) {
return null;
}
content = message.getContent();
if (content instanceof Multipart) {
Multipart multipart = (Multipart) content;
for (int i = 0; i < multipart.getCount(); i++) {
try {
Part part = multipart.getBodyPart(i);
String fileName = part.getFileName();
if (fileName != null) {
return mail.getRecipients(); // file found
}
} catch (MessagingException e) {
anException = e;
} // ignore any messaging exception and process next bodypart
}
} else {
String fileName = message.getFileName();
if (fileName != null) {
return mail.getRecipients(); // file found
}
}
} catch (Exception e) {
anException = e;
}
// if no attachment was found and at least one exception was catched rethrow it up
if (anException != null) {
throw new MessagingException("Malformed message", anException);
}
return null; // no attachment found
