Index: applications/editors/josm/plugins/mapillary/test/unit/org/openstreetmap/josm/plugins/mapillary/utils/ImageUtilsTest.java
===================================================================
--- applications/editors/josm/plugins/mapillary/test/unit/org/openstreetmap/josm/plugins/mapillary/utils/ImageUtilsTest.java	(revision 32593)
+++ applications/editors/josm/plugins/mapillary/test/unit/org/openstreetmap/josm/plugins/mapillary/utils/ImageUtilsTest.java	(revision 32642)
@@ -3,4 +3,5 @@
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
@@ -91,3 +92,9 @@
   }
 
+  @Test
+  public void testFileFilterAgainstEmptyFile() throws URISyntaxException {
+    File f = new File(ImageUtil.class.getResource("/zeroByteFile").toURI());
+    assertFalse(ImageUtil.IMAGE_FILE_FILTER.accept(f));
+  }
+
 }