diff --git a/invoice/src/main/java/com/ning/billing/invoice/generator/DefaultInvoiceGenerator.java b/invoice/src/main/java/com/ning/billing/invoice/generator/DefaultInvoiceGenerator.java
index 997bb7a..43a1d70 100644
--- a/invoice/src/main/java/com/ning/billing/invoice/generator/DefaultInvoiceGenerator.java
+++ b/invoice/src/main/java/com/ning/billing/invoice/generator/DefaultInvoiceGenerator.java
@@ -20,11 +20,9 @@ import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
-import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
-import java.util.Set;
import java.util.UUID;
import javax.annotation.Nullable;
@@ -58,8 +56,6 @@ import com.ning.billing.invoice.model.RepairAdjInvoiceItem;
import com.ning.billing.junction.api.BillingEventSet;
import com.ning.billing.util.clock.Clock;
-import com.google.common.collect.Sets;
-import com.google.common.collect.Sets.SetView;
import com.google.inject.Inject;
public class DefaultInvoiceGenerator implements InvoiceGenerator {
