Index: MultiFileSystem.java
===================================================================
RCS file: /cvs/openide/fs/src/org/openide/filesystems/MultiFileSystem.java,v
retrieving revision 1.1.40.1
diff -u -r1.1.40.1 MultiFileSystem.java

 
@@ -637,5 +629,9 @@
 
     static boolean isMaskFile(FileObject fo) {
         return fo.getExt().endsWith(MASK);
+    }
+    
+    protected Object readAttribute(FileObject fo, String attrName) {
+        return ((MultiFileObject)fo).getAttributeDefault(attrName);
     }
 }