Changeset 18513 in josm

Timestamp:

2022-07-07T23:02:39+02:00 (2 years ago)

Author:

taylor.smock

Message:

Way: Fix IAE where getNodePairs would be called on an empty way

This fixes #22198 and #22199.

File:

• trunk/src/org/openstreetmap/josm/data/osm/Way.java (modified) (1 diff)

trunk/src/org/openstreetmap/josm/data/osm/Way.java

@@ -158 +158 @@
     public List<Pair<Node, Node>> getNodePairs(boolean sort) {
         // For a way of size n, there are n - 1 pairs (a -> b, b -> c, c -> d, etc., 4 nodes -> 3 pairs)
-        List<Pair<Node, Node>> chunkSet = new ArrayList<>(this.getNodesCount() - 1);
+        List<Pair<Node, Node>> chunkSet = new ArrayList<>(Math.max(0, this.getNodesCount() - 1));
         if (isIncomplete()) return chunkSet;
         Node lastN = null;