Problem finding current user using Togglz module

[Erik de Hair]

Hi,

I was trying to configure a Togglz feature with 
UserRoleActivationStrategy but while determining the state of the 
Feature an exception is thrown at [1]. I configured the module as 
described in the documentation. The application is running on Jetty.

Did anybody have similar problems or does anyone have experience using 
different strategies?

Thanks,
Erik


[1] 
https://github.com/incodehq/incode-platform/blob/master/modules/ext/togglz/impl/src/main/java/org/isisaddons/module/togglz/glue/service/userprovider/UserProviderUsingServletPrincipal.java#L21