ToolOption.get does not detect the option name correctly. It should use the first of ':', '=', not prefer ':' over '='.

    static ToolOption get(String name) {
        String oname = name;
        if (name.contains(":")) {
            oname = name.substring(0, name.indexOf(':') + 1);
        } else if (name.contains("=")) {
            oname = name.substring(0, name.indexOf('='));
        }