I got call from HR after 3 months. HR gave me the perspective that they are looking for Struts2 developers and I clearly mentioned that I have 1.5 years of exp with struts 2 . The intervier started with basic structs questions.. like request flow in struts what are interceptors .. how validator framework works etc.. I think I answered them all rite. Then he asked me exp in struts I said 1.5 years.. then he said he is looking for more senior person in Struts framework.