code: public static FilterSupportStatus newCompositeNotSupported(
        List<FilterSupportStatus> unsupportedSubfilters) {
      StringBuilder builder = new StringBuilder();
      for (FilterSupportStatus subStatus: unsupportedSubfilters) {
        builder.append(subStatus.getReason());
        builder.append("\n");
      }
      return new FilterSupportStatus(false, builder.toString());
    }
docs: Static constructor for a not supported status caused by sub-filters not being supported.
  
  @param unsupportedSubfilters a {@link java.util.List} object.
  @return a {@link com.google.cloud.bigtable.hbase.adapters.filters.FilterSupportStatus} object.