Al final fué solucionado:
Código Java:
Ver originalString directory
= "C:\\Users\\DavidM\\IdeaProjects\\RssFeedReader\\src\\";
public List
<URL
> getURLfromTXTfile
() throws IOException{ Path path = Paths.get(directory,fileName);
Charset charset = Charset.forName("UTF-8");
List<String> allLines = Files.readAllLines(path, charset);
if(allLines == null || allLines.isEmpty()) {
System.
out.
println("El archivo está vacio"); }
List<URL> urls = new ArrayList<>();
}
return urls;
}