From 4526ae64264f6ba8b3cd61a14e081086583d85d5 Mon Sep 17 00:00:00 2001
From: Victor Shcherb <victor.shcherb@gmail.com>
Date: Mon, 11 May 2020 18:20:48 +0200
Subject: [PATCH] Fix out of memory crash with map generation

---
 .../src/main/java/net/osmand/data/TransportRoute.java       | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/OsmAnd-java/src/main/java/net/osmand/data/TransportRoute.java b/OsmAnd-java/src/main/java/net/osmand/data/TransportRoute.java
index 64839b8649..387c655112 100644
--- a/OsmAnd-java/src/main/java/net/osmand/data/TransportRoute.java
+++ b/OsmAnd-java/src/main/java/net/osmand/data/TransportRoute.java
@@ -124,8 +124,10 @@ public class TransportRoute extends MapObject {
 					if(reverseSecond) {
 						second.reverseNodes();
 					}
-					for (int i = 1; i < second.getNodes().size(); i++) {
-						first.addNode(second.getNodes().get(i));
+					if (first != second && (first.getId() < 0 || first.getId() != second.getId())) {
+						for (int i = 1; i < second.getNodes().size(); i++) {
+							first.addNode(second.getNodes().get(i));
+						}
 					}
 					changed = true;
 				} else {