private static final int ST_EXT = 5;

    private final byte[] in;
    private int inLen;

    /**
     * Creates a new MimeMap instance by loading MIME type mappings from the resource file.
     *
     * @throws IOException if there is an error reading the mime.map resource file
     */
    public MimeMap() throws IOException {
        int n;

        in = new byte[IN_SIZE];

            assertEquals("application/pdf", mimeMap.getMimeType("pdf"));
            assertEquals("application/msword", mimeMap.getMimeType("doc"));
            assertEquals("application/vnd.ms-excel", mimeMap.getMimeType("xls"));
            assertEquals("text/html", mimeMap.getMimeType("html"));
            assertEquals("text/html", mimeMap.getMimeType("htm"));
            assertEquals("image/jpeg", mimeMap.getMimeType("jpg"));