Completers.FileNameCompleter() dont work in some sense

[LingoJack]

i have a cli written by java, there has a command like 'set '
is the name user input,
is executable path
i try to complete it but fail to do;
here is my code:

ArgumentCompleter addArgumentCompleter = new ArgumentCompleter(
                    new StringsCompleter(addCommands),
                    new StringsCompleter("<alias>"),
                    new Completers.FileNameCompleter(),
                    NullCompleter.INSTANCE);
            addArgumentCompleter.setStrict(false);

i want to know whether there is a way to make Completers.FileNameCompleter() work while is inputed by user