Display database blob images in <p:graphicImage> inside <ui:repeat>

I'm using PrimeFaces 3.2 on JBoss 7.1.1.

I am trying to display an image which is stored in a BLOB in a MySQL database in <ui:repeat>. The image is stored in a byte[] and then converted to a StreamedContent as follows:

InputStream stream = new ByteArrayInputStream(ingredient.getImage());
ingredient.setJsfImage(new DefaultStreamedContent(stream, "image/jpg"));

Then I am trying to display it in a Facelet as follows:

<ui:repeat var="ingredient" value="#{formBean.ingredientResultSet}">
    <p:panel id="resultsPanel" header="#{ingredient.location.shopName}">
        <p:graphicImage value="#{ingredient.jsfImage}" alt="No picture set" />
...

However, when loading the page, I get the following error in JBoss:

SEVERE [org.primefaces.application.PrimeResourceHandler] (http--127.0.0.1-8080-12) Error in streaming dynamic resource.

How is this caused and how can I solve it?