Index: trunk/src/org/openstreetmap/josm/gui/preferences/display/LafPreference.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/preferences/display/LafPreference.java	(revision 6282)
+++ trunk/src/org/openstreetmap/josm/gui/preferences/display/LafPreference.java	(revision 6283)
@@ -62,5 +62,6 @@
             );
         } catch (Exception ex) {
-            // just ignore, Quaqua may not even be installed...
+            // just debug, Quaqua may not even be installed...
+            Main.debug(ex.getMessage());
         }
 
Index: trunk/src/org/openstreetmap/josm/tools/ImageProvider.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/ImageProvider.java	(revision 6282)
+++ trunk/src/org/openstreetmap/josm/tools/ImageProvider.java	(revision 6283)
@@ -630,5 +630,7 @@
             try {
                 img = ImageIO.read(path);
-            } catch (IOException e) {}
+            } catch (IOException e) {
+                Main.warn(e);
+            }
             return img == null ? null : new ImageResource(img);
         default: