Index: trunk/src/org/openstreetmap/josm/io/GeoJSONWriter.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/GeoJSONWriter.java	(revision 13586)
+++ trunk/src/org/openstreetmap/josm/io/GeoJSONWriter.java	(revision 13587)
@@ -145,5 +145,5 @@
 
     private static JsonArrayBuilder getCoorArray(JsonArrayBuilder builder, EastNorth c) {
-        return builder != null ? builder : Json.createArrayBuilder()
+        return (builder != null ? builder : Json.createArrayBuilder())
                 .add(BigDecimal.valueOf(c.getX()).setScale(11, RoundingMode.HALF_UP))
                 .add(BigDecimal.valueOf(c.getY()).setScale(11, RoundingMode.HALF_UP));