fredia commented on code in PR #24672:
URL: https://github.com/apache/flink/pull/24672#discussion_r1570100169
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flink-runtime/src/main/java/org/apache/flink/runtime/asyncprocessing/KeyAccountingUnit.java:
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@@ -32,6 +32,8 @@
*/
public class KeyAccountingUnit<K> {
+ public static final Object EMPTY_RECORD = "EMPTY_RECORD";
Review Comment:
The implementation of `KeyAccountingUnit ` restricts the value(record) from
being null.
I changed the `EMPTY_RECORD` to `new Object()`.
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