Reg:Hold event not caught in asterisk 11.5.1 using AMI

Hi experts,
I am using “asterisk 11.5.1” in which i am collecting all the sip events through Asterisk manager interface, using jar file(asterisk-java-1.0.0.jar) while doing so i am able to get all the events like register events, hangup events, dial events… but not able to get the hold event alone.
Previously i used version “asterisk 11” it worked fine for all the events.

Is there anything else i am missing. please assists me on this regards.