An application security has two primary goals: first, it is intended to prevent unauthorised personnel from accessing information at higher classification than their authorisation. Second, it is intended to prevent personnel from declassifying information. Using an object oriented approach to implementing application security results not only with the problem of code scattering and code tangling, but also results in weaker enforcement of security. This weaker enforcement of security could be due to the inherent design of the system or due to a programming error. Aspect Oriented Programming (AOP) complements Object-Oriented Programming (OOP) by providing another way of thinking about program structure. The key unit of modularity in OOP is the class, whereas in AOP the unit of modularity is the aspect. The goal of the paper is to present that Aspect Oriented Programming AspectJ integrated with Spring AOP provides very powerful mechanisms for stronger enforcement of security.Aspect-oriented programming (AOP) allows weaving a security aspect into an application providing additional security functionality or introducing completely new security mechanisms.Implementation of security with AOP is a flexible method to develop separated, extensible and reusable pieces of code called aspects.In this comparative study paper, we argue that Spring AOP provides stronger enforcement of security than AspectJ.We have shown both Spring AOP and AspectJ strive to provide a comprehensive AOP solutions and complements each other.