JList lazy load images - swing

Question

since i am not a java swing expert i need some help to understand why my images in my JList do not appear.
I have a JList that pops up containing all products (with inline pictures) while the user enters a search criteria. The results come from lucene and will be rendered in a JList in real time.
To lazy load the inline product images i am using a swingworker inside my rendering class.
Any help would be great!
public abstract class MatchRenderer implements ListCellRenderer {
#Override
public Component getListCellRendererComponent(JList list, final Object value, int index,
boolean isSelected, boolean cellHasFocus) {
Component component = defaultRenderer.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
if (quickRenderMode) {
return component;
} else {
try {
component = renderHook(value, component);
} catch (Exception e) {
System.err.println("Search string: " + searchString);
System.err.println(value.toString());
e.printStackTrace();
}
JPanel itemPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
JLabel label = new JLabel(defaultIcon, SwingConstants.HORIZONTAL);
itemPanel.add(label);
itemPanel.add(component);
if (value instanceof QoogleEntity && ((QoogleEntity) value).isProduct()) {
QoogleEntity qoogleItem = (QoogleEntity) value;
String imageUrl = qoogleItem.getQInfos().get(0).getqValue();
//LAZY LOAD STARTS HERE...
new ImageRetriever(label, imageUrl).execute();
}
return itemPanel;
}
}
protected abstract Component renderHook(Object value, Component component);
class ImageRetriever extends SwingWorker<ImageIcon, String> {
private JLabel lbImage;
private String imageUrl;
public ImageRetriever(JLabel lbImage, String imageUrl) {
this.lbImage = lbImage;
this.imageUrl = imageUrl;
}
#Override
protected void done() {
try {
lbImage.setIcon(get());
lbImage.repaint();
} catch (Exception e) {
}
}
#Override
protected ImageIcon doInBackground() throws Exception {
return ImageLoader.loadImageFromUrl(imageUrl, 80, 80);
}
};