No cdr log is generated for AMI generated call

I installed Asterisk on Ubuntu Karma. Using asterisk-java manager api, initiated a call and link to some extension in dial plan which in tern call fast agi script which answers call and play some voice and hang up. Every thing works fine but no cdr event generated (csv log stores default asterisk log folder). Note that i enabled log option in cdr_manager.conf. After spending lots of precious time on this version, I tried same application in asterisk 1.4 which runs in ubuntu hardy, and i got cdr event now.

if this is a bug, and no body yet tested this option in asterisk release with ubuntu karmic, I would like to file this bug. If somebody knows the solution, please help!

Thank you in advance.