diff -r 70132524f97c openide.filesystems/src/org/openide/filesystems/XMLFileSystem.java
--- a/openide.filesystems/src/org/openide/filesystems/XMLFileSystem.java	Tue Mar 24 13:58:11 2009 +0100
+++ b/openide.filesystems/src/org/openide/filesystems/XMLFileSystem.java	Tue Mar 24 15:00:26 2009 +0100
@@ -1044,20 +1044,7 @@
             
             if (url != null) {
                 String protocol = url.getProtocol();
-                if ("jar".equals(protocol)) {//NOI18N
-                    URL tmp = FileUtil.getArchiveFile(url);
-                    url = (tmp != null) ? tmp : url;
-                    protocol = url.getProtocol();
-                }
-                
-                if ("file".equals(protocol)) { //NOI18N
-                    try {
-                        File f = new File(URI.create(url.toExternalForm()));
-                        retval = (f.exists()) ? new Date(f.lastModified()) : null;
-                    } catch (IllegalArgumentException x) {
-                        Logger.getLogger(XMLFileSystem.class.getName()).log(Level.FINE, "#121777: " + url, x);
-                    }
-                } else /* #96928 */ if (!NETWORK_PROTOCOLS.contains(protocol)) {
+                if (!NETWORK_PROTOCOLS.contains(protocol)) {
                     retval = timeFromDateHeaderField(url);
                 }
             }