From 504f8197e6070350bbf1c3ef4407255d98fd3e68 Mon Sep 17 00:00:00 2001
From: afischerdev <afischer@dbserv.de>
Date: Tue, 22 Oct 2024 11:10:06 +0200
Subject: [PATCH] protect wp list during alternative run

---
 brouter-core/src/main/java/btools/router/RoutingEngine.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/brouter-core/src/main/java/btools/router/RoutingEngine.java b/brouter-core/src/main/java/btools/router/RoutingEngine.java
index caefad8..7c2134c 100644
--- a/brouter-core/src/main/java/btools/router/RoutingEngine.java
+++ b/brouter-core/src/main/java/btools/router/RoutingEngine.java
@@ -623,6 +623,12 @@ public class RoutingEngine extends Thread {
       if (nearbyTrack != null) {
         matchedWaypoints.add(nearbyTrack.endPoint);
       }
+    } else {
+      if (lastTracks.length < matchedWaypoints.size()) {
+        refTracks = new OsmTrack[matchedWaypoints.size()]; // used ways for alternatives
+        lastTracks = new OsmTrack[matchedWaypoints.size()];
+        hasDirectRouting = true;
+      }
     }
 
     OsmPath.seg = 1; // set segment counter