diff --git a/src/main/java/org/gcube/dataharvest/harvester/MethodInvocationHarvester.java b/src/main/java/org/gcube/dataharvest/harvester/MethodInvocationHarvester.java
index db77e1e..4b0411e 100644
--- a/src/main/java/org/gcube/dataharvest/harvester/MethodInvocationHarvester.java
+++ b/src/main/java/org/gcube/dataharvest/harvester/MethodInvocationHarvester.java
@@ -15,10 +15,7 @@ import org.gcube.accounting.analytics.persistence.AccountingPersistenceQuery;
 import org.gcube.accounting.analytics.persistence.AccountingPersistenceQueryFactory;
 import org.gcube.accounting.datamodel.AggregatedUsageRecord;
 import org.gcube.accounting.datamodel.aggregation.AggregatedJobUsageRecord;
-import org.gcube.accounting.datamodel.aggregation.AggregatedServiceUsageRecord;
-import org.gcube.accounting.datamodel.usagerecords.ServiceUsageRecord;
 import org.gcube.dataharvest.datamodel.HarvestedData;
-import org.gcube.dataharvest.harvester.BasicHarvester;
 import org.gcube.dataharvest.utils.DateUtils;
 import org.gcube.dataharvest.utils.Utils;
 import org.json.JSONObject;