Garbage Collection · interview question
How does Java's HotSpot VM determine if an object is unreachable?
Multiple choiceMediumchapter-14-curatedpremiumgarbage-collectiongenerational-gc
Answer and explanation
Correct answer
B. By using a reachability analysis from the root set.
Why
The HotSpot VM uses a reachability analysis from the root set of references to determine if an object is unreachable. If an object cannot be reached by any reference path, it is considered unreachable.
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