Correctly set ManyToMany relationship

ass1-jpa/src/main/java/dst/ass1/jpa/model/impl/Location.java

@@ -15,7 +15,7 @@ public class Location implements ILocation {
     private String name;
     private Long locationId;
 
-    @ManyToMany
+    @ManyToMany(mappedBy = "stops")
     private Collection<ITrip> trips;
 
     @Override

ass1-jpa/src/main/java/dst/ass1/jpa/model/impl/Trip.java

@@ -18,7 +18,7 @@ public class Trip implements ITrip {
     private ILocation pickup;
     private ILocation destination;
 
-    @ManyToMany(mappedBy = "trip")
+    @ManyToMany
     private Collection<ILocation> stops;
     private ITripInfo tripInfo;
     private IMatch match;