Error while displaying an image inside of facelets .xhtml

[Joey Geiger <jo...@staff.onmilwaukee.com>]

I've had this error thrown on a couple of pages, but not consistently 
every time. I believe it is
happening because I am using PNG images in certain places, but list 
isn't supporting that mime type and
 the browser that is looking at the page cannot render PNGs, and thus 
this error is being thrown.
Am I correct in that assumption, or is there something deeper I need to 
start looking for?
Also, is there a way I can get log4j to ignore this error specifically 
so my logs don't start to fill up?

Thank you.

ERROR [FacesServlet] - Servlet.service() for servlet FacesServlet threw 
exception
java.lang.IllegalArgumentException: ContentTypeList does not contain a 
supported content type: image
/gif, image/x-xbitmap, image/jpeg, image/pjpeg
at 
org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.selectContentType(HtmlRendererUtils.java:1043)