Index: src/com/ecyrd/jspwiki/ui/WikiServletFilter.java
===================================================================
--- src/com/ecyrd/jspwiki/ui/WikiServletFilter.java	(revision 1159672)
+++ src/com/ecyrd/jspwiki/ui/WikiServletFilter.java	(working copy)
@@ -76,6 +76,11 @@
     public void init( FilterConfig config ) throws ServletException
     {
         ServletContext context = config.getServletContext();
+        
+        // TODO REMOVEME when resolving JSPWIKI-129
+        if( System.getSecurityManager() != null )
+            context.log("WARNING: This container is running with a security manager. JSPWiki does not yet really support that right now. See issue JSPWIKI-129 for details and information on how to proceed.");
+        
         m_engine = WikiEngine.getInstance( context, null );
     }