Spring Framework and Aspect-Oriented Programming

IntelliJ has full support for the Spring framework which supports Aspect-Oriented Programing
(AOP).

AspectJ is another AOP framework.

The idea of AOP is an application or service has various "aspects" such as logging, perfomance monitoring, exception handling etc.

Dependency injection and AOP are complementary techniques.

IBM have a series of articles called AOPAtWork. Here is a sample article: "Say goodbye to scattered and tangled monitoring code, as Ron Bodkin shows you how to combine AspectJ and JMX for a flexible, modular approach to performance monitoring".