diff -r 2fdc9cc89502 -r 60c237bb677a org/sonews/daemon/command/ListGroupCommand.java
--- a/org/sonews/daemon/command/ListGroupCommand.java	Wed Jul 22 14:04:05 2009 +0200
+++ b/org/sonews/daemon/command/ListGroupCommand.java	Sat May 01 18:51:57 2010 +0200
@@ -46,6 +46,12 @@
   }
 
   @Override
+  public String impliedCapability()
+  {
+    return null;
+  }
+
+  @Override
   public boolean isStateful()
   {
     return false;