Method resolve

base/src/main/java/net/time4j/tz/Timezone.java:1667–1686

(String zoneKey)

    }

    private static TZID resolve(String zoneKey) {

        // enums bevorzugen
        TZID resolved = PREDEFINED.get(zoneKey);

        if (resolved == null) {
            if (zoneKey.startsWith("GMT")) {
                zoneKey = "UTC" + zoneKey.substring(3);
            }

            resolved = ZonalOffset.parse(zoneKey, false);

            if (resolved == null) {
                resolved = new NamedID(zoneKey);
            }
        }

        return resolved;

    }

    private static void fillEtcetera(Map<String, TZID> map) {
        map.put("Etc/GMT", ZonalOffset.UTC);