Add a static method to obtain the mime type from extension.

        return null;

    }

    // Static method called by jni.

    private static String mimeTypeFromExtension(String extension) {

        return getSingleton().getMimeTypeFromExtension(extension);

    }

    /**

     * Return true if the given extension has a registered MIME type.

     * @param extension A file extension without the leading '.'

            sMimeTypeMap.loadEntry("application/x-pkcs7-crl", "crl");

            sMimeTypeMap.loadEntry("application/x-quicktimeplayer", "qtl");

            sMimeTypeMap.loadEntry("application/x-shar", "shar");

            sMimeTypeMap.loadEntry("application/x-shockwave-flash", "swf");

            sMimeTypeMap.loadEntry("application/x-stuffit", "sit");

            sMimeTypeMap.loadEntry("application/x-sv4cpio", "sv4cpio");

            sMimeTypeMap.loadEntry("application/x-sv4crc", "sv4crc");