}
                } else {
                    logger.warn("{} is not available.", generatorName);
                }
            } else if (logger.isDebugEnabled()) {
                logger.debug("No image file exists: {}", noImageFile.getAbsolutePath());
            }
        } catch (final Exception e) {
            logger.warn("Failed to create thumbnail for {}", entity, e);
        }
    }

    /** The key of the message: WEBP Image */
    public static final String LABELS_facet_filetype_wepb = "{labels.facet_filetype_wepb}";

    /** The key of the message: BMP Image */
    public static final String LABELS_facet_filetype_bmp = "{labels.facet_filetype_bmp}";

    /** The key of the message: ICO Image */

    }

    public void test_getThumbnailUrl() throws Exception {
        String data = "<meta property=\"og:image\" content=\"http://example/foo.jpg\" />";
        String expected = "http://example/foo.jpg";
        assertGetThumbnailUrl(data, expected);

        data = "<meta property=\"og:image\" content=\"://example/foo.jpg\" />";
        expected = "http://example/foo.jpg";
        assertGetThumbnailUrl(data, expected);

labels.facet_filetype_mp4a=MP4A Audio
labels.facet_filetype_oga=OGA Audio
labels.facet_filetype_wepb=WEBP Image
labels.facet_filetype_bmp=BMP Image
labels.facet_filetype_ico=ICO Image
labels.facet_filetype_png=PNG Image
labels.facet_filetype_svg=SVG Image
labels.facet_filetype_tiff=TIFF Image
labels.facet_filetype_jpg=JPEG Image
labels.facet_filetype_archive=Archive
labels.facet_filetype_bat=Batch File
labels.facet_filetype_c=C

labels.facet_filetype_mp4a=MP4A Audio
labels.facet_filetype_oga=OGA Audio
labels.facet_filetype_wepb=WEBP Image
labels.facet_filetype_bmp=BMP Image
labels.facet_filetype_ico=ICO Image
labels.facet_filetype_png=PNG Image
labels.facet_filetype_svg=SVG Image
labels.facet_filetype_tiff=TIFF Image
labels.facet_filetype_jpg=JPEG Image
labels.facet_filetype_archive=Archive
labels.facet_filetype_bat=Batch File
labels.facet_filetype_c=C

            final String currentFileName = fileName;
            saveInfo(messages -> messages.addSuccessUploadDesignFile(GLOBAL, currentFileName));
        } catch (final Exception e) {
            logger.error("Failed to write an image file: {}", fileName, e);
            throwValidationError(messages -> messages.addErrorsFailedToWriteDesignImageFile(GLOBAL), this::asListHtml);
        }
        return redirect(getClass());
    }

    private static final String META_NAME_THUMBNAIL_CONTENT = "//META[@name=\"thumbnail\" or @name=\"THUMBNAIL\"]/@content";

    private static final String META_PROPERTY_OGIMAGE_CONTENT = "//META[@property=\"og:image\"]/@content";

    private static final String META_NAME_ROBOTS_CONTENT = "//META[@name=\"robots\" or @name=\"ROBOTS\"]/@content";

    private static final String ROBOTS_TAG_NONE = "none";

labels.facet_filetype_cpp=C++
labels.facet_filetype_csharp=C#
labels.facet_filetype_css=CSS
labels.facet_filetype_go=Go
labels.facet_filetype_groovy=Groovy
labels.facet_filetype_haskell=Haskell
labels.facet_filetype_image=Bild
labels.facet_filetype_java=Java
labels.facet_filetype_javascript=JavaScript
labels.facet_filetype_json=JSON-Datei
labels.facet_filetype_ocaml=OCaml
labels.facet_filetype_perl=Perl
labels.facet_filetype_php=PHP

        if (excludeExtensions == null) {
            excludeExtensions = split(getThumbnailHtmlImageExcludeExtensions(), ",").get(stream -> stream
                    .map(s -> s.toLowerCase(Locale.ROOT).trim()).filter(StringUtil::isNotBlank).toArray(n -> new String[n]));
            propMap.put(THUMBNAIL_HTML_IMAGE_EXCLUDE_EXTENSIONS, excludeExtensions);
        }

labels.facet_filetype_cpp=C++
labels.facet_filetype_csharp=C#
labels.facet_filetype_css=CSS
labels.facet_filetype_go=Go
labels.facet_filetype_groovy=Groovy
labels.facet_filetype_haskell=Haskell
labels.facet_filetype_image=Image
labels.facet_filetype_java=Java
labels.facet_filetype_javascript=JavaScript
labels.facet_filetype_json=Json
labels.facet_filetype_ocaml=OCaml
labels.facet_filetype_perl=Perl
labels.facet_filetype_php=PHP