diff --git a/java/org/slub/rosetta/dps/repository/plugin/ValidationCatalogResolver.java b/java/org/slub/rosetta/dps/repository/plugin/ValidationCatalogResolver.java
index 1f9f008facab9fa5895d4831a3726662e083fc65..8b60ab48352e6ca5a7bcc9f8abb913f03129cff1 100644
--- a/java/org/slub/rosetta/dps/repository/plugin/ValidationCatalogResolver.java
+++ b/java/org/slub/rosetta/dps/repository/plugin/ValidationCatalogResolver.java
@@ -21,8 +21,8 @@ class ValidationCatalogResolver implements CatalogResolver {
     }
     @Override
     public InputSource resolveEntity(String publicId, String systemId) {
-        //System.out.println("======");
-        //System.out.println("resolveEntity publicId=" + publicId + " systemId=" + systemId);
+        System.out.println("======");
+        System.out.println("resolveEntity publicId=" + publicId + " systemId=" + systemId);
         if (catalogs.length == 0) {
             //System.out.println("No catalog given!");
             errors.add("No catalog given!");
@@ -35,7 +35,7 @@ class ValidationCatalogResolver implements CatalogResolver {
             cr.setCatalogList(catalogs);
             result = cr.resolveEntity(publicId, systemId);
         } catch (IOException | CatalogException | SAXException e) {
-            //System.out.println("No mapping found for publicId=" + publicId + ", systemId=" + systemId + ", " + e.getMessage());
+            System.out.println("No mapping found for publicId=" + publicId + ", systemId=" + systemId + ", " + e.getMessage());
             errors.add("No mapping found for publicId=" + publicId + ", systemId=" + systemId + ", " + e.getMessage());
         }
         return result;
@@ -43,23 +43,23 @@ class ValidationCatalogResolver implements CatalogResolver {
 
     @Override
     public Source resolve(String href, String base) {
-        //System.out.println("======");
-        //System.out.println("resolve href=" + href + " base=" + base);
+        System.out.println("======");
+        System.out.println("resolve href=" + href + " base=" + base);
 
         return null;
     }
 
     @Override
     public InputStream resolveEntity(String publicId, String systemId, String baseUri, String nameSpace) {
-        //System.out.println("======");
-        //System.out.println("resolveEntity2 publicId=" + publicId + " systemId=" + systemId);
+        System.out.println("======");
+        System.out.println("resolveEntity2 publicId=" + publicId + " systemId=" + systemId);
         return null;
     }
 
     @Override
     public LSInput resolveResource(String type, String namespaceURI, String publicId, String systemId, String baseUri) {
-        //System.out.println("======");
-        //System.out.println("resolveResource publicId=" + publicId + " systemId=" + systemId);
+        System.out.println("======");
+        System.out.println("resolveResource publicId=" + publicId + " systemId=" + systemId);
         return null;
     }
 }