The file browser is disabled for security reasons (Java)

I am trying to use CKFinder with Java Wicket framework and Tomcat app-server. I built/attached all necessary jars (CKFinder-2.1.1.jar, CKFinderPlugin-FileEditor-2.1.1.jar… etc), tuned config for CKEditor (filebrowserBrowseUrl… - filebrowserFlashUploadUrl…), changed my web.xml (add ConnectorServlet and FileUploadFilter, tuned url-pattern…). I used config.xml from CKFinderJava example for my app...

And I have popular message: “The file browser is disabled for security reasons. Please contact your system administrator and check the CKFinder configuration file.”
The same situations when I tried to upload some file (In the message box).

I was trying to find a discussions for this theme, but without success. Usually people speaking about some configuration file which contain some magic option enable/disable. But I didn’t find that one.

So it is my question – friends, do you have any ideas for this situation?