how to execute classes of a multiple maven project from JMeter

I want to execute java class from J Meter in my maven project. There are several maven project in my application. I have also tried with simple demo to execute it using J meter its working fine, however when I tried to execute my maven project class using J meter I am enable to execute it properly. Can anyone please suggest me how to call / execute any maven project class using the J meter. Thanks in advance for your reply.