devfreitag opened a new issue, #32885:
URL: https://github.com/apache/beam/issues/32885
### What happened?
Apache Beam version: 2.59.0
Java version: 17
Follow-up to issue #31397, where I previously reported an error when trying
to read RabbitMQ messages with headers containing a List type value. While that
was resolved, I've now encountered a new error that occurs when the headers
contain a List value with an object.
It works:
```
headers = {
'abc': 'abc-123456',
'xyz': 'xyz-123456'
}
```
It **doesn't** works:
```
headers = {
'abc': 'abc-123456',
'xyzDict': {
'xyz': 'xyz-123456'
}
}
```
Stacktrace:
```
Exception in thread "main" java.lang.IllegalArgumentException: Forbidden
IOException when writing to OutputStream
at
org.apache.beam.sdk.util.CoderUtils.encodeToSafeStream(CoderUtils.java:89)
at
org.apache.beam.sdk.util.CoderUtils.encodeToByteArray(CoderUtils.java:70)
at
org.apache.beam.sdk.util.CoderUtils.encodeToByteArray(CoderUtils.java:55)
at org.apache.beam.sdk.util.CoderUtils.clone(CoderUtils.java:168)
at
org.apache.beam.sdk.util.MutationDetectors$CodedValueMutationDetector.<init>(MutationDetectors.java:118)
at
org.apache.beam.sdk.util.MutationDetectors.forValueWithCoder(MutationDetectors.java:49)
at
org.apache.beam.runners.direct.ImmutabilityCheckingBundleFactory$ImmutabilityEnforcingBundle.add(ImmutabilityCheckingBundleFactory.java:115)
at
org.apache.beam.runners.direct.UnboundedReadEvaluatorFactory$UnboundedReadEvaluator.processElement(UnboundedReadEvaluatorFactory.java:145)
at
org.apache.beam.runners.direct.DirectTransformExecutor.processElements(DirectTransformExecutor.java:165)
at
org.apache.beam.runners.direct.DirectTransformExecutor.run(DirectTransformExecutor.java:129)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.io.NotSerializableException:
com.rabbitmq.client.impl.LongStringHelper$ByteArrayLongString
at
java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1187)
at
java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:350)
Caused by: java.io.NotSerializableException:
com.rabbitmq.client.impl.LongStringHelper$ByteArrayLongString
```
### Issue Priority
Priority: 2 (default / most bugs should be filed as P2)
### Issue Components
- [ ] Component: Python SDK
- [X] Component: Java SDK
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- [ ] Component: Typescript SDK
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