Index: src/org/openstreetmap/josm/plugins/tracer2/ConnectWays.java
===================================================================
--- src/org/openstreetmap/josm/plugins/tracer2/ConnectWays.java	(revision 34975)
+++ src/org/openstreetmap/josm/plugins/tracer2/ConnectWays.java	(working copy)
@@ -24,6 +24,7 @@
 import org.openstreetmap.josm.gui.MainApplication;
 import org.openstreetmap.josm.plugins.tracer2.preferences.ServerParam;
 import org.openstreetmap.josm.tools.Pair;
+import org.openstreetmap.josm.tools.Utils;
 
 public final class ConnectWays {
 
@@ -69,7 +70,7 @@
 
     private static List<Way> getWaysOfNode(Node node) {
         List<Way> ways;
-        ways = OsmPrimitive.getFilteredList(node.getReferrers(), Way.class);
+        ways = new LinkedList<>(Utils.filteredCollection(node.getReferrers(), Way.class));
         return ways;
     }