rem: var nsISupportsString = Components.interfaces.nsISupportsString; var factory = Components.classes["@mozilla.org/supports-string;1"]; var wrapper = factory.createInstance(nsISupportsString); 
add: var nsISupportsCString = Components.interfaces.nsISupportsCString; var factory = Components.classes["@mozilla.org/supports-cstring;1"]; var wrapper = factory.createInstance(nsISupportsCString); 
context: function wrapString(str){    var nsISupportsString = Components.interfaces.nsISupportsString;    var factory = Components.classes["@mozilla.org/supports-string;1"];    var wrapper = factory.createInstance(nsISupportsString);    wrapper.data = str;    return wrapper;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/3703f3c61bce0c45d03ff380dc6b806f944ecb73/TestObjectCache.js/buggy/netwerk/test/TestObjectCache.js