diff --git a/buisnesslogic/src/main/java/com/plannaplan/entities/Exchange.java b/buisnesslogic/src/main/java/com/plannaplan/entities/Exchange.java
index 44a4d3f..3b60d8d 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/entities/Exchange.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/entities/Exchange.java
@@ -1,6 +1,5 @@
 package com.plannaplan.entities;
 
-import java.sql.Date;
 import java.sql.Timestamp;
 
 import javax.persistence.Entity;
diff --git a/buisnesslogic/src/main/java/com/plannaplan/models/MatchData.java b/buisnesslogic/src/main/java/com/plannaplan/models/MatchData.java
index c3a8496..1ee5db5 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/models/MatchData.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/models/MatchData.java
@@ -1,7 +1,5 @@
 package com.plannaplan.models;
 
-import java.sql.Timestamp;
-
 import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Exchange;
 
diff --git a/buisnesslogic/src/main/java/com/plannaplan/services/ExchangeService.java b/buisnesslogic/src/main/java/com/plannaplan/services/ExchangeService.java
index d3e9e8d..6d303ea 100644
--- a/buisnesslogic/src/main/java/com/plannaplan/services/ExchangeService.java
+++ b/buisnesslogic/src/main/java/com/plannaplan/services/ExchangeService.java
@@ -1,13 +1,10 @@
 package com.plannaplan.services;
 
-import java.sql.Timestamp;
 import java.util.ArrayList;
-import java.util.Comparator;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
-import java.util.TreeSet;
 import java.util.stream.Collectors;
 
 import com.plannaplan.entities.Assignment;
diff --git a/buisnesslogic/src/test/java/com/plannaplan/services/ExchangeServiceTest.java b/buisnesslogic/src/test/java/com/plannaplan/services/ExchangeServiceTest.java
index d71dba7..b0577c5 100644
--- a/buisnesslogic/src/test/java/com/plannaplan/services/ExchangeServiceTest.java
+++ b/buisnesslogic/src/test/java/com/plannaplan/services/ExchangeServiceTest.java
@@ -3,11 +3,7 @@ package com.plannaplan.services;
 import static org.junit.Assert.assertTrue;
 
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
 import java.util.List;
-import java.util.Set;
-import java.util.TreeSet;
 import java.util.stream.Collectors;
 
 import com.plannaplan.entities.Assignment;