From 3772436140b3d2bd87e2d43fa9bf1400c7d763f5 Mon Sep 17 00:00:00 2001
From: oblonski <jsprit.vehicle.routing@gmail.com>
Date: Mon, 27 Apr 2015 14:32:48 +0200
Subject: [PATCH] replace HashMap by LinkedHashMap to ensure reproducibility
 (#156)

---
 .../main/java/jsprit/core/problem/VehicleRoutingProblem.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/jsprit-core/src/main/java/jsprit/core/problem/VehicleRoutingProblem.java b/jsprit-core/src/main/java/jsprit/core/problem/VehicleRoutingProblem.java
index 16bf271b..3f704b46 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/VehicleRoutingProblem.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/VehicleRoutingProblem.java
@@ -89,9 +89,9 @@ public class VehicleRoutingProblem {
 			
 		};
 
-		private Map<String,Job> jobs = new HashMap<String, Job>();
+		private Map<String,Job> jobs = new LinkedHashMap<String, Job>();
 		
-		private Map<String,Job> tentativeJobs = new HashMap<String,Job>();
+		private Map<String,Job> tentativeJobs = new LinkedHashMap<String,Job>();
 		
 		private Set<String> jobsInInitialRoutes = new HashSet<String>();