boyuanzz commented on pull request #11749:
URL: https://github.com/apache/beam/pull/11749#issuecomment-671463121


   > @boyuanzz This change has broken python postcommits that run kafka 
cross-language it tests.
   > 
   > Could you take a look on that? I tried to fix it but it seems it would 
take me a lot of time since I'm not familiar with those SDF changes - it's 
possible that it's something straightforward. I tried to remove 
--experiments=beam_fn_api to run cross-language tests with deprecated 
transforms without SDF, but without luck.
   > 
   > A stacktrace fragment:
   > 
   > ```
   > Caused by: java.util.concurrent.ExecutionException: 
java.lang.RuntimeException: Error received from SDK harness for instruction 2: 
java.util.concurrent.ExecutionException: java.lang.RuntimeException: Could not 
find a way to create AutoValue class class 
org.apache.beam.sdk.io.kafka.KafkaSourceDescriptor
   >    at 
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
   >    at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
   >    at 
org.apache.beam.sdk.fn.data.CompletableFutureInboundDataClient.awaitCompletion(CompletableFutureInboundDataClient.java:48)
   >    at 
org.apache.beam.sdk.fn.data.BeamFnDataInboundObserver.awaitCompletion(BeamFnDataInboundObserver.java:91)
   >    at 
org.apache.beam.fn.harness.BeamFnDataReadRunner.blockTillReadFinishes(BeamFnDataReadRunner.java:342)
   >    at 
org.apache.beam.fn.harness.data.PTransformFunctionRegistry.lambda$register$0(PTransformFunctionRegistry.java:108)
   >    at 
org.apache.beam.fn.harness.control.ProcessBundleHandler.processBundle(ProcessBundleHandler.java:302)
   >    at 
org.apache.beam.fn.harness.control.BeamFnControlClient.delegateOnInstructionRequestType(BeamFnControlClient.java:173)
   >    at 
org.apache.beam.fn.harness.control.BeamFnControlClient.lambda$processInstructionRequests$0(BeamFnControlClient.java:157)
   >    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   >    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   >    at java.lang.Thread.run(Thread.java:748)
   > ```
   
   Looking.


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