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Which practice avoids a common mistake with ConcurrentSkipListMap?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Prefer the version of ConcurrentSkipListMap that makes behavior less predictable as long as the code compiles.Silence the ConcurrentSkipListMap problem by using raw types, broad catches, or shared mutable state.Do not pick a skip-list map when you only need direct key lookup and do not care about sorted navigation.Ignore the ConcurrentSkipListMap issue and rely on team discipline instead of APIs or contracts.

Answer and explanation

Correct answer

C. Do not pick a skip-list map when you only need direct key lookup and do not care about sorted navigation.

Why

Do not pick a skip-list map when you only need direct key lookup and do not care about sorted navigation. This is a common failure mode in real Java code and a frequent interview follow-up.

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Which practice avoids a common mistake with ConcurrentSkipListMap?

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