I Failed My Java Interview — Then Found These 6 Resources That Actually Worked

Devrim Ozcay

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2 days ago

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“You said you know Spring Boot. So… can you explain the DispatcherServlet lifecycle?”
That was the moment I knew I was doomed.

Let me be blunt:
You can “know” Java… and still completely flop in interviews.
Because interviews don’t test your ability to code.
They test your ability to explain and survive under pressure.

I learned this the hard way.
Twice.

Real Questions That Ruined My Day

Here are actual Java/Spring interview questions I couldn’t answer the first time:

💥 “What’s the difference between @ControllerAdvice and @RestControllerAdvice?”
💥 “What’s the fastest way to make a collection thread-safe?”
💥 “How would you scale a product recommendation engine?”
💥 “Can you explain how @Transactional(propagation=REQUIRES_NEW) behaves during exception rollback?”

I stared blankly. I mumbled.
And the recruiter wrote something. I’ll never forget the sound of that pen.

I Knew I Had to Do This Differently