[SNMP4J] How to set value of MOScalar to no such instance

[ru_44 at hotmail.com]

I am using the agent pro and created my own MIBs for snmp4j agent.
My question is how to I set the mib element to no such instance since it uses MOscalar for scalar attribute in agent pro:
here is my code:
moFactory.createScalar(oidVictorySdrSysCbitStatus,


                             moFactory.createAccess(MOAccessImpl.ACCESSIBLE_FOR_READ_ONLY), 

                             null,

                             TC_MODULE_VICTORY_SDR_MIB, TC_VICTORYSDRTESTRESULTTYPE);
 
I can't change the null value to use the Null.nosuchInstance SMI constant.  
Is there a way to initialize the MIB value to no such instance.
 
 
Also I need to know how to set the value for any table row values also to return "no such instance" in MOScalar.
 
thanks
Rushik Patel