code: private Map<String, Object> getAllReflectedValues() {
          Map<String, Object> res = new LinkedHashMap<>();
  
          for (Map.Entry<MethodSymbol, Attribute> entry :
                                                    getAllValues().entrySet()) {
              MethodSymbol meth = entry.getKey();
              Object value = generateValue(meth, entry.getValue());
              if (value != null) {
                  res.put(meth.name.toString(), value);
              } else {
                  // Ignore this element.  May (properly) lead to
                  // IncompleteAnnotationException somewhere down the line.
              }
          }
          return res;
      }
docs: Returns a map from element names to their values in "dynamic
  proxy return form".  Includes all elements, whether explicit or
  defaulted.