Index: /trunk/src/org/openstreetmap/josm/gui/preferences/imagery/CacheSettingsPanel.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/preferences/imagery/CacheSettingsPanel.java	(revision 17229)
+++ /trunk/src/org/openstreetmap/josm/gui/preferences/imagery/CacheSettingsPanel.java	(revision 17230)
@@ -107,5 +107,5 @@
             }
         }
-        return Long.valueOf(-1);
+        return 0L;
     }