Index: applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignsPlugin.java
===================================================================
--- applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignsPlugin.java	(revision 30438)
+++ applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignsPlugin.java	(revision 30495)
@@ -30,5 +30,5 @@
 import org.openstreetmap.josm.gui.ExtendedDialog;
 import org.openstreetmap.josm.gui.dialogs.properties.PropertiesDialog;
-import org.openstreetmap.josm.io.MirroredInputStream;
+import org.openstreetmap.josm.io.CachedFile;
 import org.openstreetmap.josm.plugins.Plugin;
 import org.openstreetmap.josm.plugins.PluginInformation;
@@ -244,5 +244,5 @@
         InputStream in = null;
         if (source.startsWith("http://") || source.startsWith("https://") || source.startsWith("ftp://")) {
-            in = new MirroredInputStream(source);
+            in = new CachedFile(source).getInputStream();
         } else if (source.startsWith("file:")) {
             in = new URL(source).openStream();