docs: private static String getClassFromLine(String line) {
          line = line.trim();
  
          // Skip commented lines
          if (line.length() == 0 || line.startsWith("#"))
              return null;
  
          // lop off spaces/tabs/end-of-line-comments
          String[] className = line.split("[\\s#]");
  
          if (className.length >= 1)
              return className[0];
  
          return null;
      }