Fixed pdf2image conversion with imagemagick on PDFs having transparency

The target image format (jpeg) doesn't support transparency, so the
Html2ImageTest produced unusable black images when ran on a linux
machine having imagemagick package installed.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/java/net/yacy/cora/util/Html2ImageTest.java b/test/java/net/yacy/cora/util/Html2ImageTest.java
index 7d994cd24..4274cd6df 100644
--- a/test/java/net/yacy/cora/util/Html2ImageTest.java
+++ b/test/java/net/yacy/cora/util/Html2ImageTest.java
@@ -26,7 +26,7 @@ public class Html2ImageTest {
     public void testPdf2image() {

         // collect pdf filenames in test directory

         File pd = new File("test/parsertest");

-        List<String> extensions = new ArrayList();

+        List<String> extensions = new ArrayList<>();

         extensions.add("pdf");

         FilenameFilter fileFilter = new ExtensionsFileFilter(extensions);

         String[] pdffiles = pd.list(fileFilter);