Index: trunk/src/org/openstreetmap/josm/data/validation/TestError.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/validation/TestError.java	(revision 11132)
+++ trunk/src/org/openstreetmap/josm/data/validation/TestError.java	(revision 11134)
@@ -141,4 +141,7 @@
             CheckParameterUtil.ensureThat(this.primitives == null, "primitives already set");
             this.primitives = primitives;
+            if (this.highlighted == null) {
+                this.highlighted = primitives;
+            }
             return this;
         }
@@ -163,5 +166,4 @@
          */
         public Builder highlight(Collection<? extends OsmPrimitive> highlighted) {
-            CheckParameterUtil.ensureThat(this.highlighted == null, "highlighted already set");
             this.highlighted = highlighted;
             return this;
@@ -176,5 +178,4 @@
          */
         public Builder highlightWaySegments(Collection<WaySegment> highlighted) {
-            CheckParameterUtil.ensureThat(this.highlighted == null, "highlighted already set");
             this.highlighted = highlighted;
             return this;
@@ -189,5 +190,4 @@
          */
         public Builder highlightNodePairs(Collection<List<Node>> highlighted) {
-            CheckParameterUtil.ensureThat(this.highlighted == null, "highlighted already set");
             this.highlighted = highlighted;
             return this;