Base64 encode file content (eager fetch) in java8

base64EncodeFile.java

public static String base64Encode(Path filePath) {
  String base64EncodeFileConetnt = "";
  try (InputStream fileStream = newInputStream(filePath)) {
    // Reading a Image file from file system
    byte[] fileData = new byte[(int) Files.size(filePath)];
    //noinspection ResultOfMethodCallIgnored
    fileStream.read(fileData);
    base64EncodeFileConetnt = Base64.getEncoder().encodeToString(fileData);
  } catch (FileNotFoundException e) {
    System.out.println("File not found" + e);
  } catch (IOException ioe) {
    System.out.println("Exception while reading the file " + ioe);
  }
  return base64EncodeFileConetnt;
}