assertUrlLink("ftp://www.codelibs.org/%z", //
                "ftp://www.codelibs.org/%z");

        userAgentHelper = new UserAgentHelper() {
            public UserAgentType getUserAgentType() {
                return UserAgentType.IE;
            }
        };
        ComponentUtil.register(userAgentHelper, "userAgentHelper");
        FileUtil.writeBytes(propertiesFile.getAbsolutePath(), new byte[0]);

        final int pos = url.indexOf(':', 5);
        final boolean isLocalFile = pos > 0 && pos < 12;

        final UserAgentType ua = ComponentUtil.getUserAgentHelper().getUserAgentType();
        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();
        switch (ua) {
        case IE:
            if (isLocalFile) {