docs: public static String getStringWithFilePathOrClasspath(
              String filePathOrClasspath, String charsetName) {
          return getStringAsOptWithFilePath(filePathOrClasspath, charsetName)
                  .orElseGet(
                          () -> getStringAsOptWithClasspath(
                                  filePathOrClasspath,
                                  charsetName).orElse(null));
      }