docs: protected final void addDefaultAnnotationValues(String annotation, Map<CharSequence, Object> values) {
          if (annotation != null) {
              Map<String, Map<CharSequence, Object>> annotationDefaults = this.annotationDefaultValues;
              if (annotationDefaults == null) {
                  this.annotationDefaultValues = new HashMap<>();
                  annotationDefaults = this.annotationDefaultValues;
              }
  
              putValues(annotation, values, annotationDefaults);
          }
      }