From 05b883c03438f4adfd77a885276f8e11b7f6434c Mon Sep 17 00:00:00 2001
From: Stefan Schroeder <4sschroeder@gmail.com>
Date: Tue, 8 Oct 2013 17:01:06 +0200
Subject: [PATCH] handle empty routes - i.e. no activity has to be visit

---
 .../src/main/java/algorithms/ReverseRouteActivityVisitor.java    | 1 +
 jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/jsprit-core/src/main/java/algorithms/ReverseRouteActivityVisitor.java b/jsprit-core/src/main/java/algorithms/ReverseRouteActivityVisitor.java
index 7550f0cb..6ef22e96 100644
--- a/jsprit-core/src/main/java/algorithms/ReverseRouteActivityVisitor.java
+++ b/jsprit-core/src/main/java/algorithms/ReverseRouteActivityVisitor.java
@@ -14,6 +14,7 @@ class ReverseRouteActivityVisitor implements RouteVisitor{
 	@Override
 	public void visit(VehicleRoute route) {
 		if(visitors.isEmpty()) return;
+		if(route.isEmpty()) return;
 		begin(route);
 		Iterator<TourActivity> revIterator = route.getTourActivities().reverseActivityIterator();
 		while(revIterator.hasNext()){
diff --git a/jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java b/jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java
index a7353c72..814a8737 100644
--- a/jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java
+++ b/jsprit-core/src/main/java/algorithms/RouteActivityVisitor.java
@@ -13,6 +13,7 @@ class RouteActivityVisitor implements RouteVisitor{
 	@Override
 	public void visit(VehicleRoute route) {
 		if(visitors.isEmpty()) return;
+		if(route.isEmpty()) return;
 		begin(route);
 		for(TourActivity act : route.getTourActivities().getActivities()){
 			visit(act);