code: private String computeResourceBundleName() {
          Logger logger = this;
  
          while (logger != null) {
              String name = logger.getResourceBundleName();
              if (name != null) {
                  return name;
              }
              logger = logger.getParent();
          }
  
          return null;
      }
docs: Worker method to determine the resource bundle name to use for logger. If
  set, this is just the resource bundle name of this logger. If not set,
  move up through the list of parents and find the first non-null resource
  bundle name.
  
  @return String the resource bundle name