Index: trunk/src/org/openstreetmap/josm/tools/ImageProvider.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/ImageProvider.java	(revision 13868)
+++ trunk/src/org/openstreetmap/josm/tools/ImageProvider.java	(revision 13869)
@@ -256,5 +256,5 @@
 
     /** set of class loaders to take images from */
-    protected static final Set<ClassLoader> classLoaders = new HashSet<>();
+    private static final Set<ClassLoader> classLoaders = new HashSet<>();
     static {
         try {