PDFBOX-5660: Sonar fix

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1924891 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFAnnotationStamp.java

@@ -115,7 +115,7 @@ public FDFAnnotationStamp(Element element) throws IOException
         }
         if (base64EncodedAppearance != null && !base64EncodedAppearance.isEmpty())
         {
-            LOG.debug("Decoded XML: {}", new String(decodedAppearanceXML));
+            LOG.debug("Decoded XML: {}", () -> new String(decodedAppearanceXML));
 
             Document stampAppearance = XMLUtil
                     .parse(new ByteArrayInputStream(decodedAppearanceXML));
@@ -275,7 +275,7 @@ else if ("ASCII".equals(childEncodingAttr))
 
     private COSArray parseArrayElement(Element arrayEl) throws IOException
     {
-        LOG.debug("Parse {} Array", arrayEl.getAttribute("KEY"));
+        LOG.debug("Parse {} Array", () -> arrayEl.getAttribute("KEY"));
         COSArray array = new COSArray();
 
         NodeList nodeList = arrayEl.getChildNodes();