ton3r commented on issue #30152:
URL: https://github.com/apache/beam/issues/30152#issuecomment-1921837087
I was able to "bend the spoon" by java reflection and set the package
private things to accessible, or writing an own `CustomPulsarWriter` in the
`package org.apache.beam.sdk.io.pulsar;` to extend abstract classes.. But now
```
Exception in thread "main" java.lang.IllegalArgumentException:
org.apache.beam.sdk.io.pulsar.WriteToPulsarDoFn: Non-splittable, but annotated
as @UnboundedPerElement
at
org.apache.beam.sdk.transforms.reflect.DoFnSignatures$ErrorReporter.throwIllegalArgument(DoFnSignatures.java:2409)
at
org.apache.beam.sdk.transforms.reflect.DoFnSignatures$ErrorReporter.checkArgument(DoFnSignatures.java:2415)
at
org.apache.beam.sdk.transforms.reflect.DoFnSignatures.inferBoundedness(DoFnSignatures.java:917)
at
org.apache.beam.sdk.transforms.reflect.DoFnSignatures.parseSignature(DoFnSignatures.java:848)
at
java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1737)
at
org.apache.beam.sdk.transforms.reflect.DoFnSignatures.getSignature(DoFnSignatures.java:301)
at org.apache.beam.sdk.transforms.ParDo.validate(ParDo.java:614)
at org.apache.beam.sdk.transforms.ParDo.of(ParDo.java:403)
at
org.apache.beam.sdk.io.pulsar.PulsarIO$Write.expand(PulsarIO.java:180)
at
org.apache.beam.sdk.io.pulsar.PulsarIO$Write.expand(PulsarIO.java:151)
at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:548)
at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:482)
at org.apache.beam.sdk.values.PCollection.apply(PCollection.java:360)
at de.seepex.bucketdataflow.PubSubToGcs.main(PubSubToGcs.java:103)
```
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