how to print log output in restFB

i am using restFB framework to do some fb related stuff. To debug an issue they asked me to provide response json from logs.

Bu开发者_C百科t i m not seeing anything in the logs. so how should i enable or what should i write to print the logging?

looks like issue with jdev default logging mode. eclipse print it by default. for jdev you need to enable -Djbo.debugoutput=console