Github user kl0u commented on a diff in the pull request: https://github.com/apache/flink/pull/3484#discussion_r106684413 --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/WindowOperator.java --- @@ -567,6 +600,17 @@ protected boolean isLate(W window) { } /** + * Decide if a record is currently late, based on current watermark and allowed lateness. + * + * @param element The element to check + * @return The element for which should be considered when sideoutputs + */ + protected boolean isLate(StreamRecord<IN> element){ --- End diff -- That is what I remember as well.
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