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https://issues.apache.org/jira/browse/FLINK-25197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17465400#comment-17465400
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Galen Warren commented on FLINK-25197:
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PR created: https://github.com/apache/flink-statefun/pull/282
> Using Statefun RequestReplyFunctionBuilder fails with Java 8 date/time type
> `java.time.Duration` not supported by default: add Module
> "org.apache.flink.shaded.jackson2.com.fasterxml.jackson.datatype:jackson-datatype-jsr310"
> to enable handling
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-25197
> URL: https://issues.apache.org/jira/browse/FLINK-25197
> Project: Flink
> Issue Type: Bug
> Components: Stateful Functions
> Affects Versions: statefun-3.1.0
> Reporter: Galen Warren
> Assignee: Galen Warren
> Priority: Major
> Labels: pull-request-available
> Fix For: statefun-3.1.0
>
>
> When using RequestReplyFunctionBuilder to build a stateful functions job, the
> job fails at runtime with:
> Java 8 date/time type `java.time.Duration` not supported by default: add
> Module
> "org.apache.flink.shaded.jackson2.com.fasterxml.jackson.datatype:jackson-datatype-jsr310"
> to enable handling
> It appears this is because, in
> [RequestReplyFunctionBuilder::transportClientPropertiesAsObjectNode|https://github.com/apache/flink-statefun/blob/b4ba9547b8f0105a28544fd28a5e0433666e9023/statefun-flink/statefun-flink-datastream/src/main/java/org/apache/flink/statefun/flink/datastream/RequestReplyFunctionBuilder.java#L127],
> a default instance of ObjectMapper is used to serialize the client
> properties, which now include a java.time.Duration. There is a
> [StateFunObjectMapper|https://github.com/apache/flink-statefun/blob/master/statefun-flink/statefun-flink-common/src/main/java/org/apache/flink/statefun/flink/common/json/StateFunObjectMapper.java]
> class in the project that has customized serde support, but it is not used
> here.
> The fix seems to be to:
> * Use an instance of StateFunObjectMapper to serialize the client properties
> in RequestReplyFunctionBuilder
> * Modify StateFunObjectMapper to both serialize and deserialize instances of
> java.time.Duration (currently, only deserialization is supported)
> I've made these changes locally and it seems to fix the problem. Would you be
> interested in a PR? Thanks.
>
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