code: public static FilterSupportStatus newUnknownFilterType(Filter unknownFilterType) {
      return new FilterSupportStatus(
          false,
          String.format(
              "Don't know how to adapt Filter class '%s'", unknownFilterType.getClass()));
    }
docs: Static helper to construct not support adaptations due to no adapter being available for
  the given Filter type.
  
  @param unknownFilterType The unknown filter instance.
  @return A new FilterSupportStatus.