Abacn commented on PR #39043:
URL: https://github.com/apache/beam/pull/39043#issuecomment-5064077312
It seems this breaks coder inferences in tests: #35514
```
java.lang.IllegalStateException: Unable to return a default Coder for
BeamSortRel_28989/WithDummyKey/AddKeys/Map/ParMultiDo(Anonymous).output
[PCollection@426526029]. Correct one of the following root causes:
No Coder has been manually specified; you may do so using .setCoder().
Inferring a Coder from the CoderRegistry failed: Cannot provide coder for
parameterized type org.apache.beam.sdk.values.KV<java.lang.String,
org.apache.beam.sdk.values.Row>: Cannot provide a coder for a Beam Row. Please
provide a schema instead using PCollection.setRowSchema.
Using the default output Coder from the producing PTransform failed:
PTransform.getOutputCoder called.
at
org.apache.beam.sdk.util.Preconditions.checkStateNotNull(Preconditions.java:499)
at org.apache.beam.sdk.values.PCollection.getCoder(PCollection.java:282)
at
org.apache.beam.sdk.values.PCollection.finishSpecifying(PCollection.java:113)
at
org.apache.beam.sdk.runners.TransformHierarchy.finishSpecifyingInput(TransformHierarchy.java:154)
at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:558)
at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:507)
```
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