Java 11 - Read a Resource

read-resource.java

// No dependencies, NIO 2.0
public String read(final String resource) {
  var in = getClass().getClassLoader().getResource(resource);
  return new String(Files.readAllBytes(Paths.get(in.toURI())));
}

// IOUtils + Vavr, Apache Commons
public String read() {
  return Option.of(getClass().getClassLoader().getResourceAsStream(fn))
      .flatMap(in -> Try.of(() -> IOUtils.toString(in, StandardCharsets.UTF_8)).toOption())
      .getOrElse("");
}

// As Vavr is a given anyway, prefer the second solution; switch to Either as result if error message is important

// or maybe, combine first and second solution:
public String read() {
    return Option.of(getClass().getClassLoader().getResourceAsStream(fn))
      .flatMap(in -> Try.of(() -> new String(Files.readAllBytes(Paths.get(in.toURI()))).toOption())
      .getOrElse("");
 }
  

Last solution not checked very much yet...