"\nempty first line\nno newline at end", "\n", "empty first line\n", "no newline at end");
    bufferHelper("three\rlines\rno newline at end", "three\r", "lines\r", "no newline at end");
    bufferHelper("mixed\nline\rendings\r\n", "mixed\n", "line\r", "endings\r\n");
  }

  private static final int[] CHUNK_SIZES = {1, 2, 3, Integer.MAX_VALUE};

  private static void bufferHelper(String input, String... expect) throws IOException {

     * -Dlog4j2.formatMsgNoLookups=true<br>
     * -Dlog4j2.disable.jmx=true<br>
     * -Dlog4j.skipJansi=true<br>
     * -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider<br>
     * -Dorg.apache.pdfbox.rendering.UsePureJavaCMYKConversion=true<br>
     *  */
    String JVM_CRAWLER_OPTIONS = "jvm.crawler.options";

    /** The key of the configuration. e.g. -Djava.awt.headless=true<br>
     * -Dfile.encoding=UTF-8<br>

        "\nempty first line\nno newline at end", "\n", "empty first line\n", "no newline at end");
    bufferHelper("three\rlines\rno newline at end", "three\r", "lines\r", "no newline at end");
    bufferHelper("mixed\nline\rendings\r\n", "mixed\n", "line\r", "endings\r\n");
  }

  private static final int[] CHUNK_SIZES = {1, 2, 3, Integer.MAX_VALUE};

  private static void bufferHelper(String input, String... expect) throws IOException {

            // TODO: This breaks the provider
            task.setOutputDir(extension.getUserManual().getStagingRoot().dir("render-single-pdf").get().getAsFile());
            // The PDF rendering needs at least 2GB of heap
            task.jvm(options -> options.setMaxHeapSize("3g"));
        });