rem: throw Components.interfaces.calIWcapErrors.WCAP_NO_ERRNO; 
add: throw new Components.Exception( "No WCAP errno (missing X-NSCP-WCAP-ERRNO).", Components.interfaces.calIWcapErrors.WCAP_NO_ERRNO ); 
context: function getWcapXmlErrno( xml ){    var elem = xml.getElementsByTagName( "X-NSCP-WCAP-ERRNO" );    if (elem) {        elem = elem.item(0);        if (elem)            return parseInt(elem.textContent);    }    // some commands just respond with an empty calendar, no errno. WTF.    throw Components.interfaces.calIWcapErrors.WCAP_NO_ERRNO;}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/30d02961047b21c123c6585c71a085e40f3e6fa5/calWcapErrors.js/buggy/calendar/providers/wcap/calWcapErrors.js