diff --git a/java/org/slub/rosetta/dps/repository/plugin/Validation/SLUBValidateDTD.java b/java/org/slub/rosetta/dps/repository/plugin/Validation/SLUBValidateDTD.java
index c7481d8796966a05d66966fe29911f94ff90c7b8..9076f8bd2d88efc184412e3957c62f154d58e2d5 100644
--- a/java/org/slub/rosetta/dps/repository/plugin/Validation/SLUBValidateDTD.java
+++ b/java/org/slub/rosetta/dps/repository/plugin/Validation/SLUBValidateDTD.java
@@ -20,29 +20,25 @@ public class SLUBValidateDTD {
     }
     private final DocumentBuilderFactory dbf = DocumentBuilderFactory.newDefaultNSInstance();
     public boolean validateAgainst(String filePath) throws IOException, ParserConfigurationException {
-            dbf.setValidating(true);
-            assert(dbf.isValidating());
-            dbf.setFeature(XMLConstants.USE_CATALOG, true);
-            //dbf.setAttribute("http://apache.org/xml/features/nonvalidating/load-external-dtd", false); // MATHML 2.0 triggers an error if enabled
-            dbf.setAttribute(XMLConstants.FEATURE_SECURE_PROCESSING, true);
-            dbf.setIgnoringElementContentWhitespace(true);
-            dbf.setNamespaceAware(true);
-            DocumentBuilder dbValidate = dbf.newDocumentBuilder();
-            assert(dbValidate.isValidating());
-            //reportDetail("align entitity resolver");
-            dbValidate.setEntityResolver(validationCatalogResolver);
-            dbValidate.setErrorHandler(slubXmlErrorHandler);
-
-            //reportDetail("reparse using own catalog");
-
+        dbf.setValidating(true);
+        assert (dbf.isValidating());
+        dbf.setFeature(XMLConstants.USE_CATALOG, true);
+        //dbf.setAttribute("http://apache.org/xml/features/nonvalidating/load-external-dtd", false); // MATHML 2.0 triggers an error if enabled
+        dbf.setAttribute(XMLConstants.FEATURE_SECURE_PROCESSING, true);
+        dbf.setIgnoringElementContentWhitespace(true);
+        dbf.setNamespaceAware(true);
+        DocumentBuilder dbValidate = dbf.newDocumentBuilder();
+        assert (dbValidate.isValidating());
+        //reportDetail("align entitity resolver");
+        dbValidate.setEntityResolver(validationCatalogResolver);
+        dbValidate.setErrorHandler(slubXmlErrorHandler);
+        //reportDetail("reparse using own catalog");
         try {
             dbValidate.parse(new File(filePath));
-        //} catch (SAXException e) {
+            //} catch (SAXException e) {
         } catch (Exception e) {
             System.out.println("ERROR: " + e.getMessage());
         }
         return slubXmlErrorHandler.is_Valid();
-
     }
-
 }