private static void addConverter(Set<MediaType> supportedTypes,
                                     Class<? extends ITikaToXMPConverter> converter) {
        for (MediaType type : supportedTypes) {
            CONVERTER_MAP.put(type, converter);
        }
    }
Initializes the map with supported converters.
tika-xmp/src/main/java/org/apache/tika/xmp/convert/TikaToXMP.java