Spring Boot Interview Question — @Transactional Proxy Trap Explained |
This mistake wasted 3 hours of my life in production. And the worst part — my code looked completely correct.
I had @Transactional on a method. I called it from another method in the same class. No errors. No warnings. But the transaction was silently not working. Data was getting saved even when it should have rolled back.
Took me 3 hours to figure out why.
The reason? Spring uses a proxy to handle transactions. When you call a transactional method from within the same class — you bypass the proxy completely. The transaction never even starts.
In this video I show you:
✅ Why @Transactional fails silently inside same class
✅ How Spring proxy actually works under the hood
✅ Live code proof — data saved when it should not be
✅ Two fixes — different bean and self injection
✅ Why this appears in every senior Spring Boot interview
Watch till the end — the live proof will change how you write Spring Boot code forever.
Save this video. Share with a Spring Boot developer who needs to see this today.
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