StefanRRichter commented on a change in pull request #6707: [FLINK-10157]
[State TTL] Allow `null` user values in map state with TTL
URL: https://github.com/apache/flink/pull/6707#discussion_r219102134
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File path:
flink-core/src/main/java/org/apache/flink/api/java/typeutils/runtime/NullableSerializer.java
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@@ -116,7 +139,7 @@ public T copy(T from, T reuse) {
@Override
public int getLength() {
int len = originalSerializer.getLength();
- return len < 0 ? len : len + 1;
+ return len == 0 ? 1 : -1;
Review comment:
This change seems to be a bug.
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