[j-nsp] Problem to insert rule into IDP

[Md. Jahangir Hossain]

Dear friend:

Wishes all are fine.I am facing some problem on my IDP to insert rule, here the details information :


Platform: NS-IDP-200
Managed OS version: IDP4.0
Running OS Version: IDP4.0.93787
NSM Version:  2012.1R2
Problem description:
After fresh installing NSM I can push configuration to IDP without any problem but next time when I edit or insert any new rule and try to push configuration in to IDP it shows 
Error Code: 
Error Text:
   Exception caught during update device:
     null
Error Details:
   java.lang.NullPointerException


it would be nice any one give me suggestion to resolve this issue ?


Thanks
jahangir