Spring Debugger New Power: Where Should I Click to Demystify Spring Boot Magic?
summary
Demos show the new Spring Debugger inside IntelliJ IDEA Debugger tracing a property back to an unexpected environment post‑processor that acronyms "save and release all hostages" into "Sarah", locating the exact overriding code and Spring‑factories entry. The debugger inspects programmatic bean registration (Spring 7) from JSON, reveals why bean names collide, why autowired collections win over manual lists, why prototype beans never get @PreDestroy called, and why internal calls bypass transactional proxies. Each demo runs and the debugger reproduces the surprise.
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chapters (10)
- 0:00Introduction and philosophy
- 2:25Property source puzzler
- 5:56Environment post-processors
- 10:40Bean definition mechanisms
- 14:29Debugging complex dependencies
- 21:46Bean registry and lifecycle
- 26:07Dynamic bean registration
- 32:05Design patterns in Spring
- 40:01Lifecycle and destruction
- 45:15Transactional proxies
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