LinkedHashMap instead of HashMap

src/de/tud/kom/p2psim/impl/topology/movement/aerial/SimpleMutlicopterMovement.java

@@ -21,6 +21,7 @@
 package de.tud.kom.p2psim.impl.topology.movement.aerial;
 
 import java.util.HashMap;
+import java.util.LinkedHashMap;
 import java.util.LinkedList;
 import java.util.Map;
 
@@ -49,7 +50,7 @@ public class SimpleMutlicopterMovement implements UAVMovementModel  {
 	private double currentSpeed;
 	
 	private LinkedList<PositionVector> route = new LinkedList<>();
-	private Map<PositionVector, ReachedLocationCallback> locationCallbacks = new HashMap<>();  // TODO callback interface
+	private Map<PositionVector, ReachedLocationCallback> locationCallbacks = new LinkedHashMap<>();  // TODO callback interface
 		
 	
 	public SimpleMutlicopterMovement(UAVTopologyComponent topologyComponent, double maxCruiseSpeed, double minCruiseSpeed) {