Cache miss double load
Review this Java code that returns a cached user or loads (and caches) one on a miss.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.
0:00 of about 16 min
Mark a line and say what kind of problem it is.0 findings
1User u = cache.get(id); // returns null on miss
2return Optional.ofNullable(u)
3 .orElse(loadAndCache(id)); // loadAndCache hits the DB
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Run or narrate your approach, then ask the coach.