Code reviewMediumcr-g008

Subject Memory leaksLevel Mid–Senior~25 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this Java event bus.

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.

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Code to reviewjava

1public class EventBus {2    private final List<Listener> listeners = new CopyOnWriteArrayList<>();3 4    public void subscribe(Listener l) { listeners.add(l); }5 6    public void publish(Event e) {7        for (Listener l : listeners) l.onEvent(e);8    }9}

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