I've been attempting to construct a feed document with custom entries with no success. While I've seen some (very little) discussion on the web regarding my error.
My code looks like: ProfileElement profileElement = entry.addExtension(Constants.QNAME_PROFILE); And my error is: "org.apache.abdera.parser.stax.FOMExtensibleElement cannot be cast to ProfileElement" I can verify the configuration of my extension factory, and trace calls into it. this.addImpl(QNAME_PROFILE, ProfileElement.class); The Getting Started Guide leads me to believe that "Extension Factories are covered in detail in the Developer's Guide<developers.html>." However, that link is broken because the destination, developers.html, does not exist. Can someone please help me resolve this exception and/or direct me to the referenced Developer's Guide? Thanks
