Problem in creating plugin for RCP

[workdesk03]

Hi Friends,
I am working on Headless RCP application.And try to write a extention for my application.
I tried all possibilities but not able to load my extension.
I have Base application where i defined extention point.
and a plugin where i am adding a extention.

I am tring to load like this

IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint extensionPoints []= registry.getExtensionPoints();
IExtensionPoint extensionPoint = registry.getExtensionPoint("BaseProject.percept");
IConfigurationElement[] elements = extensionPoint.getConfigurationElements();

i am getting elements array of length zero.

My base and extention projects are attached.
Please help me in finding out whats probelm.

Regards,
Abhishek