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[Bug] Subscription message serialization issue · Issue #5205 · apache/eventmesh · GitHub
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[Bug] Subscription message serialization issue #5205

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Description

@likehao19

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Environment

Windows

EventMesh version

1.10.0

What happened

2025-09-25 06:50:30,709 ERROR [eventMesh-clientManage-4] HandlerService(HandlerService.java:325) - deserialize json string to typeReference error
org.apache.eventmesh.common.exception.JsonException: deserialize json string to typeReference error
at org.apache.eventmesh.common.utils.JsonUtils.parseTypeReferenceObject(JsonUtils.java:180) ~[eventmesh-common-1.10.0-release.jar:1.10.0-release]
at org.apache.eventmesh.runtime.core.protocol.http.processor.RemoteSubscribeEventProcessor.handler(RemoteSubscribeEventProcessor.java:122) ~[eventmesh-runtime-1.10.0-release.jar:1.10.0-release]
at org.apache.eventmesh.runtime.core.protocol.http.processor.HandlerService$HandlerSpecific.run(HandlerService.java:285) [eventmesh-runtime-1.10.0-release.jar:1.10.0-release]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_342]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_342]
at java.lang.Thread.run(Thread.java:750) [?:1.8.0_342]
Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type java.util.ArrayList<org.apache.eventmesh.common.protocol.SubscriptionItem> from String value (token JsonToken.VALUE_STRING)
at [Source: REDACTED (StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION disabled); line: 1, column: 1]
at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1767) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1541) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.DeserializationContext.handleUnexpectedToken(DeserializationContext.java:1488) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.handleNonArray(CollectionDeserializer.java:402) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer._deserializeFromString(CollectionDeserializer.java:332) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:252) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:30) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4917) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3860) ~[jackson-databind-2.18.0.jar:2.18.0]
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3843) ~[jackson-databind-2.18.0.jar:2.18.0]
at org.apache.eventmesh.common.utils.JsonUtils.parseTypeReferenceObject(JsonUtils.java:178) ~[eventmesh-common-1.10.0-release.jar:1.10.0-release]
... 5 more
2025-09-25 06:50:36,063 INFO [EventMesh-TcpMetricsCalculator-scheduler-1] TcpMetricsCalculator(TcpMetricsCalculator.java:107) - ===================================

How to reproduce

Subscription message serialization issue

Debug logs

Are you willing to submit PR?

  • Yes I am willing to submit a PR!

Code of Conduct

Activity

  1. github-actions commented on Sep 25, 2025

    @github-actions
    Contributor

    Welcome to the Apache EventMesh community!!
    We are glad that you are contributing by opening this issue. :D

    Please make sure to include all the relevant context.
    We will be here shortly.

    If you are interested in contributing to our project, please let us know!
    You can check out our contributing guide on contributing to EventMesh.

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  2. jayabha-jayas commented on Sep 30, 2025

    @jayabha-jayas
    Contributor

    Hi, I would like to work on this. Can you please assign me?
    Also, it would be great if you can add "How to reproduce"
    Thanks

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