Showing the uploaded image in Vaadin with EasyUploads

I'm trying to use EasyUploads-addon for Vaadin, but can't get the image shown.

When I click addon's "Choose File"-button, it will ask me to open an file. I choose some .png -file from my images and addon shows the information of the picture beneath it.

Then I press my "Upload"-button, which is currently needed just to show the uploaded image at first.

private void showUploadedImage() {
    Object value = upload.getValue();
    byte[] data = (byte[]) value;

    StreamResource resource = new StreamResource(
            new StreamResource.StreamSource() {
                private static final long serialVersionUID = 1L;

                @Override
                public InputStream getStream() {
                    return new ByteArrayInputStream(data);
                }
            }, "filename.png");

    image.setVisible(true);
    image.setCaption("Uploaded image");
    image.setSource(resource);
}

upload = EasyUpload's component which is used to choose file

image = Embedded component that I have drawn with the designer to my layout.

But when I look the page with browser the image is not shown. The image is just shown as there is no image at all, just caption will be shown.

HTML-code of the image from the page's source:

<img src="null">

This might be really trivial case, but all the examples that I found was over 3-4 years old and didn't look helpful.

Can someone tell me, how it should be done?