Retrieval of lastKnownLocation now clones the position instance to

prevent unintended information spread

src/de/tud/kom/p2psim/impl/topology/DefaultTopologyComponent.java

@@ -198,7 +198,11 @@ public class DefaultTopologyComponent implements TopologyComponent,
 
 	@Override
 	public Location getLastLocation() {
-		return position;
+		/*
+		 * As we want to mimic real world behavior, the current position
+		 * snapshot is cloned to prevent information propagation due to Java.
+		 */
+		return position.clone();
 	}
 
 	@Override