Index: /trunk/test/unit/org/openstreetmap/josm/JOSMFixture.java
===================================================================
--- /trunk/test/unit/org/openstreetmap/josm/JOSMFixture.java	(revision 9800)
+++ /trunk/test/unit/org/openstreetmap/josm/JOSMFixture.java	(revision 9801)
@@ -10,4 +10,5 @@
 import org.openstreetmap.josm.data.projection.Projections;
 import org.openstreetmap.josm.gui.MainApplication;
+import org.openstreetmap.josm.gui.layer.Layer;
 import org.openstreetmap.josm.gui.preferences.ToolbarPreferences;
 import org.openstreetmap.josm.io.OsmApi;
@@ -112,4 +113,8 @@
             if (Main.map == null) {
                 Main.main.createMapFrame(null, null);
+            } else {
+                for (Layer l: Main.map.mapView.getAllLayers()) {
+                    Main.map.mapView.removeLayer(l);
+                }
             }
         }