Enterprise Java developers looked upon the inheritance hierarchy and saw that it was deeply nested, and they said "it is good." Just like those biblically accurate angels with their infinite eyes and spinning wheels of fire, this Spring Boot controller class comes with an inheritance chain so long it could trace its ancestry back to the Big Bang. Seven layers of abstraction deep, implementing approximately 47 interfaces (give or take a dimension), because why have a simple REST controller when you can have ControllerEndpointHandlerMapping that inherits from classes with names longer than a CVS receipt? The "Aware" interfaces at the bottom are the cherry on top—your class needs to be aware of literally everything in the Spring ecosystem. ServletContextAware? Check. EmbeddedValueResolverAware? Obviously. At this point, the class is more aware than a meditation guru. This is what happens when you let enterprise architects cook without supervision.