Index: applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmFileCacheTileLoader.java
===================================================================
--- applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmFileCacheTileLoader.java	(revision 27992)
+++ applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/OsmFileCacheTileLoader.java	(revision 28254)
@@ -257,4 +257,7 @@
             try {
                 tileFile = getTileFile();
+                if (!tileFile.exists())
+                    return false;
+
                 loadTagsFromFile();
                 if ("no-tile".equals(tile.getValue("tile-info")))