return;
                } catch (final NumberFormatException e) {
                    // ignore
                }
            }
            final Object trackTotalHitsValue = fessConfig.getQueryTrackTotalHitsValue();
            if (trackTotalHitsValue instanceof Boolean) {
                searchRequestBuilder.setTrackTotalHits((Boolean) trackTotalHitsValue);
            } else if (trackTotalHitsValue instanceof Number) {