src/main/java/js/http/form/FormIteratorImpl.java
@Override
	public boolean hasNext() {
		try {
			if (currentPart != null) {
				currentPart.close();
			}
			if (!fileItemIterator.hasNext()) {
				return false;
			}
			FileItemStream fileItemStream = fileItemIterator.next();
			if (fileItemStream.isFormField()) {
				currentPart = new FormFieldImpl(fileItemStream);
			} else {
				currentPart = new UploadStreamImpl(fileItemStream);
			}
			return true;
		} catch (IOException | FileUploadException e) {
			log.error(e);
		}
		return false;
	}
@Override
	public boolean hasNext() {
		try {
			if (currentPart != null) {
				currentPart.close();
			}
			if (!fileItemIterator.hasNext()) {
				return false;
			}
			FileItemStream fileItemStream = fileItemIterator.next();
			if (fileItemStream.isFormField()) {
				currentPart = new FormFieldImpl(fileItemStream);
			} else {
				currentPart = new UploadStreamImpl(fileItemStream);
			}
			return true;
		} catch (IOException | FileUploadException e) {
			log.error(e);
		}
		return false;
	}
Test if there are more parts on this form iterator. This implementation has side effects: it takes care to close form
parts while traversing form iterator.

@return true if there is at least one available form part.