Chapter Assessment: Proxies and AOP

This review covers proxies and aspect-oriented programming. It asks how a JDK proxy and a class-based proxy each get their type, how advice and pointcuts are written, and how @Transactional, @Cacheable, @Async, and @Retryable share one proxy mechanism. It also tests the ways a call can miss the proxy. The bank holds 20 questions, and each attempt draws ten. Most questions show a symptom, such as a failed injection, a cache that never hits, or a null field, and ask for the cause or the fix