Spring Core · interview question
Why is it dangerous to use stateful instance variables in a Singleton service?
Multiple choiceHardchapter-9-curatedpremiumspring-corebean-scope
Answer and explanation
Correct answer
C. It causes inconsistent behavior in a multithreaded environment.
Why
Stateful instance variables in a Singleton can cause inconsistent behavior because the same instance is accessed by multiple threads, potentially leading to race conditions and data corruption.
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