docs: public FieldInfo getFieldInfo(final String fieldName) {
          if (!scanResult.scanSpec.enableFieldInfo) {
              throw new IllegalArgumentException("Please call ClassGraph#enableFieldInfo() before #scan()");
          }
          // Implement field overriding
          for (final ClassInfo ci : getOverrideOrder()) {
              final FieldInfo fi = ci.getDeclaredFieldInfo(fieldName);
              if (fi != null) {
                  return fi;
              }
          }
          return null;
      }