@Override
                protected DateFormat initialValue() {
                    // Date format specified by RFC 7231 section 7.1.1.1.
                    DateFormat rfc1123 = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US);
                    rfc1123.setLenient(false);
                    rfc1123.setTimeZone(UTC);
                    return rfc1123;
                }
Most websites serve cookies in the blessed format. Eagerly create the parser to ensure such
cookies are on the fast path.
netbare-injector/src/main/java/com/github/megatronking/netbare/http/Cookie.java