code: public static String getStringWithClasspathOrFilePath(
              String classpathOrFilePath, String charsetName) {
          return getStringAsOptWithClasspath(classpathOrFilePath, charsetName)
                  .orElseGet(() -> getStringAsOptWithFilePath
                          (classpathOrFilePath, charsetName).orElse(null));
      }
docs: Gets string with classpath or file path.
  
  @param classpathOrFilePath the classpath or file path
  @param charsetName         the charset name
  @return the string with classpath or file path