diff --git a/src/main/java/org/gcube/accounting/persistence/Persistence.java b/src/main/java/org/gcube/accounting/persistence/Persistence.java
index c3ed1fd..10f39b8 100644
--- a/src/main/java/org/gcube/accounting/persistence/Persistence.java
+++ b/src/main/java/org/gcube/accounting/persistence/Persistence.java
@@ -4,8 +4,6 @@
 package org.gcube.accounting.persistence;
 
 import java.io.File;
-import java.util.Calendar;
-import java.util.GregorianCalendar;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
@@ -93,11 +91,11 @@ public abstract class Persistence {
 			
 			serviceUsageRecord.setResourceScope("/gcube/devsec");
 	
-			Calendar creationTime = new GregorianCalendar();
+			//Calendar creationTime = new GregorianCalendar();
 			//Calendar startTime = new GregorianCalendar();
 			//Calendar endTime = new GregorianCalendar();
 	
-			serviceUsageRecord.setCreationTime(creationTime);
+			//serviceUsageRecord.setCreationTime(creationTime);
 			//usageRecord.setStartTime(startTime);
 			//usageRecord.setEndTime(endTime);
 			
diff --git a/src/test/java/org/gcube/accounting/datamodel/implementation/ServiceUsageRecordTest.java b/src/test/java/org/gcube/accounting/datamodel/implementation/ServiceUsageRecordTest.java
new file mode 100644
index 0000000..8bad572
--- /dev/null
+++ b/src/test/java/org/gcube/accounting/datamodel/implementation/ServiceUsageRecordTest.java
@@ -0,0 +1,36 @@
+/**
+ * 
+ */
+package org.gcube.accounting.datamodel.implementation;
+
+import org.gcube.accounting.datamodel.implementations.ServiceUsageRecord;
+import org.gcube.accounting.exception.InvalidValueException;
+import org.gcube.accounting.persistence.Persistence;
+import org.junit.Test;
+
+/**
+ * @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
+ *
+ */
+public class ServiceUsageRecordTest {
+
+	@Test
+	public void exampleTest() throws InvalidValueException {
+		Persistence.setFallbackLocation(System.getProperty("user.home"));
+		Persistence persistence = Persistence.getInstance();
+		
+		ServiceUsageRecord serviceUsageRecord = new ServiceUsageRecord();
+		serviceUsageRecord.setCreatorId("luca.frosini");
+		serviceUsageRecord.setConsumerId("accounting");
+		serviceUsageRecord.setResourceScope("/gcube/devsec");
+		serviceUsageRecord.setServiceClass("Accounting");
+		serviceUsageRecord.setServiceName("Accounting-Lib");
+		serviceUsageRecord.setRefHost("localhost");
+		serviceUsageRecord.setRefVM("local");
+		serviceUsageRecord.setCallerScope("/gcube/devsec");
+		
+		serviceUsageRecord.setResourceProperty("ConnectionTest", "Test");
+		
+		persistence.account(serviceUsageRecord);
+	}
+}