diff --git a/geoportal-client/src/test/java/org/gcube/application/geoportal/clients/StatelessClientTests.java b/geoportal-client/src/test/java/org/gcube/application/geoportal/clients/StatelessClientTests.java
index 5d5602e..c9f953b 100644
--- a/geoportal-client/src/test/java/org/gcube/application/geoportal/clients/StatelessClientTests.java
+++ b/geoportal-client/src/test/java/org/gcube/application/geoportal/clients/StatelessClientTests.java
@@ -54,10 +54,9 @@ public class StatelessClientTests extends BasicVreTests{
 
 	@Test
 	public void query() throws Exception {
-		QueryRequest req=new QueryRequest();
-		req.setFilter(Document.parse("{ \"nome\" : { \"$eq\" : \"mock\" } }"));
 
-		System.out.println("FRA "+ count(client.query(req)));
+		System.out.println("FRA "+ count(client.query(
+				Queries.parse(TestConcessioniQueries.queries.get("emptyresult.json")))));
 
 		// No Transformation
 		System.out.print("First Registered \t");
diff --git a/geoportal-service/src/main/java/org/gcube/application/geoportal/service/utils/Serialization.java b/geoportal-service/src/main/java/org/gcube/application/geoportal/service/utils/Serialization.java
index dbe892c..676edbe 100644
--- a/geoportal-service/src/main/java/org/gcube/application/geoportal/service/utils/Serialization.java
+++ b/geoportal-service/src/main/java/org/gcube/application/geoportal/service/utils/Serialization.java
@@ -5,6 +5,7 @@ import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+import lombok.extern.slf4j.Slf4j;
 import org.bson.Document;
 import org.gcube.application.geoportal.common.model.rest.QueryRequest;
 
@@ -12,6 +13,7 @@ import java.io.IOException;
 import java.time.format.DateTimeFormatter;
 import java.util.Iterator;
 
+@Slf4j
 public class Serialization {
 
 	
@@ -43,7 +45,9 @@ public class Serialization {
 
 
 		public static QueryRequest parseQuery(String queryString) throws IOException {
+			log.debug("Parsing query Request {} ",queryString);
 			Document queryDocument = Document.parse(queryString);
+			log.debug("Document is ",queryDocument.toJson());
 			QueryRequest req = new QueryRequest();
 			if (queryDocument.containsKey("ordering"))
 				req.setOrdering(Serialization.read(((Document) queryDocument.get("ordering")).toJson(), QueryRequest.OrderedRequest.class));
diff --git a/geoportal-service/src/test/java/org/gcube/application/geoportal/service/ConcessioniOverMongoTest.java b/geoportal-service/src/test/java/org/gcube/application/geoportal/service/ConcessioniOverMongoTest.java
index d67d90f..f856b84 100644
--- a/geoportal-service/src/test/java/org/gcube/application/geoportal/service/ConcessioniOverMongoTest.java
+++ b/geoportal-service/src/test/java/org/gcube/application/geoportal/service/ConcessioniOverMongoTest.java
@@ -113,7 +113,7 @@ public class ConcessioniOverMongoTest extends BasicServiceTestUnit{
 
 
 	private static <T> Iterator<T> queryFile(String filename, WebTarget target, Class<T> clazz) throws Exception {
-		String queryString= TestConcessioniQueries.queries.get(filename);
+		String queryString=TestConcessioniQueries.queries.get(filename);
 
 		String result = check(target.path(InterfaceConstants.Methods.QUERY_PATH).request(MediaType.APPLICATION_JSON_TYPE).post(
 				Entity.entity(queryString,MediaType.APPLICATION_JSON)),String.class);