Jianhui Dong created FLINK-26738:
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Summary: Default value of StateDescriptor is valid when enable
state ttl config
Key: FLINK-26738
URL: https://issues.apache.org/jira/browse/FLINK-26738
Project: Flink
Issue Type: Bug
Components: API / Core
Affects Versions: 1.15.0
Reporter: Jianhui Dong
Suppose we declare a ValueState like following:
{code:java}
ValueStateDescriptor<Tuple2<Long, Long>> descriptor =
new ValueStateDescriptor<>(
"average", // the state name
TypeInformation.of(new TypeHint<Tuple2<Long, Long>>()
{}),
Tuple2.of(0L, 0L));
{code}
and then we add state ttl config to the state:
{code:java}
descriptor.enableTimeToLive(StateTtlConfigUtil.createTtlConfig(60000));
{code}
the default value Tuple2.of(0L, 0L) will be invalid and may cause NPE.
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