collections = null;
cookieStores = new HashMap<String, CookieStore>();
xprocData = new XProcData(this);
parser = new Parser(this);
try {
// FIXME: I should *do* something with these libraries, shouldn't I?
standardLibrary = parser.loadStandardLibrary();
if (errorCode != null) {
throw new XProcException(errorCode, errorMessage);