Gourav,
If everything is running properly without java errors, then you must have just missed something in your code that is causing this. What are you doing in your extended code? If you are bringing down a new field, make sure you make the visibility "public" for the POJO property and that the variable name exactly matches the Agentry object property name. Using your extended code, if you debug the steplet after the array is populated and ready to be returned to Agentry, can you still see your custom data populated in the POJO objects?
If you still can't figure it out, you could send me the extended code and editor export via e-mail and I will look at them.
Jason Latko - Senior Product Developer at SAP