kfaraz commented on code in PR #18249:
URL: https://github.com/apache/druid/pull/18249#discussion_r2206643274
##########
processing/src/test/java/org/apache/druid/java/util/metrics/StubServiceEmitter.java:
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@@ -68,15 +71,15 @@ public void emit(Event event)
*/
public List<Event> getEvents()
{
- return events;
+ return new ArrayList<>(events);
}
/**
* Gets all the metric events emitted since the previous {@link #flush()}.
*
* @return Map from metric name to list of events emitted for that metric.
*/
- public Map<String, List<ServiceMetricEventSnapshot>> getMetricEvents()
+ public Map<String, Queue<ServiceMetricEventSnapshot>> getMetricEvents()
{
return metricEvents;
Review Comment:
If that is the case, we should expose another method in `StubServiceEmitter`
to access the original events queue so that a copy is not needed.
Alternatively, we can just make `events` field protected so that
`LatchableEmitter` can access it.
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