diff --git a/src/main/java/org/gcube/application/geoportalcommon/ConvertToDataValueObjectModel.java b/src/main/java/org/gcube/application/geoportalcommon/ConvertToDataValueObjectModel.java
index a266541..57f89d8 100644
--- a/src/main/java/org/gcube/application/geoportalcommon/ConvertToDataValueObjectModel.java
+++ b/src/main/java/org/gcube/application/geoportalcommon/ConvertToDataValueObjectModel.java
@@ -91,8 +91,7 @@ public class ConvertToDataValueObjectModel {
 
 	public static final String TIME_FORMAT = "HH" + HOURS_MINUTES_SEPARATOR + "mm";
 
-	public static List<String> KEYSET_POSSIBLE_DATE = Arrays.asList("start", "end", "created", "updated", "inizio",
-			"fine", "creato", "aggiornato");
+	public static List<String> KEYSET_POSSIBLE_DATE = Arrays.asList("start", "end", "created", "updated", "inizio", "fine", "creato", "aggiornato");
 
 	/**
 	 * To use case descriptor DV.
@@ -765,7 +764,7 @@ public class ConvertToDataValueObjectModel {
 				return formatter.format(instant);
 			}
 		} catch (Exception e) {
-			LOG.warn("Date format error: ", e);
+			LOG.warn("Date format error: "+e.getMessage());
 		}
 
 		return instantString;
@@ -942,27 +941,6 @@ public class ConvertToDataValueObjectModel {
 		Object value = document.get(key);
 		String keyLower = key.toLowerCase();
 
-//		String listAsStringValue = null;
-//		if(value instanceof LinkedHashMap) {
-//			LinkedHashMap<String, Object> toListView = (LinkedHashMap<String, Object>) value;
-//			for (String listValue : toListView.keySet()) {
-//				listAsStringValue+=""
-//			}
-//			
-//		}
-
-		/*
-		 * ObjectMapper objectMapper = new ObjectMapper(); JavaTimeModule javaTimeModule
-		 * = new JavaTimeModule(); javaTimeModule.addDeserializer(LocalDateTime.class,
-		 * new ParseDeserializer()); // javaTimeModule.addSerializer(LocalDate.class,
-		 * new MyLocalDateSerializer()); objectMapper.registerModule(javaTimeModule);
-		 * 
-		 * objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
-		 * objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS,
-		 * false); objectMapper.configure(SerializationFeature.
-		 * WRITE_DATE_TIMESTAMPS_AS_NANOSECONDS, false);
-		 */
-
 		// checking if the key is a Date
 		for (String possibleDate : KEYSET_POSSIBLE_DATE) {
 			if (keyLower.contains(possibleDate)) {