docs: public static @SlashedClassName
      String extractClassName(String originalName) {
          String name = originalName;
          if (name.charAt(0) != '[' && name.charAt(name.length() - 1) != ';') {
              return name;
          }
          while (name.charAt(0) == '[') {
              name = name.substring(1);
          }
          if (name.charAt(0) == 'L' && name.charAt(name.length() - 1) == ';') {
              name = name.substring(1, name.length() - 1);
          }
          if (name.charAt(0) == '[') {
              throw new IllegalArgumentException("Bad class name: " + originalName);
          }
          return name;
      }