Index: applications/editors/josm/plugins/dataimport/build.xml
===================================================================
--- applications/editors/josm/plugins/dataimport/build.xml	(revision 29210)
+++ applications/editors/josm/plugins/dataimport/build.xml	(revision 29222)
@@ -31,5 +31,5 @@
     <property name="commit.message" value="Changed constructor signature, updated build.xml"/>
     <!-- enter the *lowest* JOSM version this plugin is currently compatible with -->
-    <property name="plugin.main.version" value="4394"/>
+    <property name="plugin.main.version" value="5681"/>
     <!--
       ************************************************
Index: applications/editors/josm/plugins/dataimport/src/org/openstreetmap/josm/plugins/dataimport/io/SingleSegmentGpxTrack.java
===================================================================
--- applications/editors/josm/plugins/dataimport/src/org/openstreetmap/josm/plugins/dataimport/io/SingleSegmentGpxTrack.java	(revision 29210)
+++ applications/editors/josm/plugins/dataimport/src/org/openstreetmap/josm/plugins/dataimport/io/SingleSegmentGpxTrack.java	(revision 29222)
@@ -8,12 +8,12 @@
 import org.openstreetmap.josm.data.gpx.GpxTrack;
 import org.openstreetmap.josm.data.gpx.GpxTrackSegment;
+import org.openstreetmap.josm.data.gpx.WithAttributes;
 
-public class SingleSegmentGpxTrack implements GpxTrack {
+public class SingleSegmentGpxTrack extends WithAttributes implements GpxTrack {
 
-    private final Map<String, Object> attributes;
     private final GpxTrackSegment trackSegment;
 
     public SingleSegmentGpxTrack(GpxTrackSegment trackSegment, Map<String, Object> attributes) {
-        this.attributes = Collections.unmodifiableMap(attributes);
+        this.attr = Collections.unmodifiableMap(attributes);
         this.trackSegment = trackSegment;
     }
@@ -21,5 +21,5 @@
 
     public Map<String, Object> getAttributes() {
-        return attributes;
+        return attr;
     }