This should read "MimeTypes are equal" not "equals"

    /**
     * MimeTypes are equals if their primary types, subtypes, and
     * parameters are all equal. No default values are taken into
     * account.
     */
    public boolean equals(Object thatObject) {


At the bottom of the block of code below, "now" should be "no"

    /**
     * A routine for parsing the MIME type out of a String.
     */
    private void parse(String rawdata) throws MimeTypeParseException {
        //System.out.println("MimeType.parse("+rawdata+")");
        int slashIndex = rawdata.indexOf('/');
        int semIndex = rawdata.indexOf(';');
        if((slashIndex < 0) && (semIndex < 0)) {
            // neither character is present, so treat it
            // as an error
            throw new MimeTypeParseException("Unable to find a sub type.");
        } else if((slashIndex < 0) && (semIndex >= 0)) {
            // we have a ';' (and therefore a parameter list),
            // but now '/' indicating a sub type is present
            throw new MimeTypeParseException("Unable to find a sub type.");


Fix doc comments for the following two methods:

    /**
     * Determine of the primary and sub type of this object is
     * the same as the what is in the given type.
     */
    public boolean match(MimeType type) {
        if (type == null)
            return false;
        return primaryType.equals(type.getPrimaryType())
                    && (subType.equals("*")
                            || type.getSubType().equals("*")
                            || (subType.equals(type.getSubType())));
    }

    /**
     * Determine of the primary and sub type of this object is
     * the same as the content type described in rawdata.
     */
    public boolean match(String rawdata) throws MimeTypeParseException {
        if (rawdata == null)
            return false;
        return match(new MimeType(rawdata));
    }