final int height = reader.getHeight(0);
                if (width <= 0 || height <= 0) {
                    return Result.NO_IMAGE;
                }
                if (!fessConfig.validateThumbnailSize(width, height)) {
                    return Result.INVALID_SIZE;
                }
                final int samplingWidth = width / fessConfig.getThumbnailHtmlImageThumbnailWidthAsInteger();

                    continue;
                }
                if (height != null && width != null) {
                    try {
                        if (fessConfig.validateThumbnailSize(width, height)) {
                            return thumbnailUrl;
                        }
                    } catch (final Exception e) {

    Integer getThumbnailHtmlImageMinHeightAsInteger();

    java.math.BigDecimal getThumbnailHtmlImageMaxAspectRatioAsDecimal();

    default boolean validateThumbnailSize(final int width, final int height) {
        if (width <= 0 || height <= 0 || width < getThumbnailHtmlImageMinWidthAsInteger().intValue()
                || height < getThumbnailHtmlImageMinHeightAsInteger().intValue()) {