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Mairbek Khadikov commented on BEAM-2837: ---------------------------------------- It seems like it is still possible to run into the version conflict, when google-cloud-dataflow-java-sdk-all is included. > Writing To Spanner From Google Cloud DataFlow - Failure > ------------------------------------------------------- > > Key: BEAM-2837 > URL: https://issues.apache.org/jira/browse/BEAM-2837 > Project: Beam > Issue Type: Bug > Components: runner-dataflow > Affects Versions: 2.1.0 > Environment: Google Cloud DataFlow > Reporter: Al Yaros > Assignee: Mairbek Khadikov > Priority: Major > Fix For: 2.2.0 > > > Simple Java Program That reads from Pub\Sub and Writes to Spanner Fails with > cryptic error message. > Simple Program to Demonstrate the Error: > [https://github.com/alyaros/ExamplePubSubToSpannerViaDataFlow] > {code:java} > *Caused by: org.apache.beam.sdk.util.UserCodeException: > java.lang.NoClassDefFoundError: Could not initialize class > com.google.cloud.spanner.spi.v1.SpannerErrorInterceptor > > org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:36) > org.apache.beam.sdk.io. > gcp.spanner.SpannerWriteGroupFn$DoFnInvoker.invokeSetup(Unknown Source) > > com.google.cloud.dataflow.worker.DoFnInstanceManagers$ConcurrentQueueInstanceManager.deserializeCopy(DoFnInstanceManagers.java:66) > > com.google.cloud.dataflow.worker.DoFnInstanceManagers$ConcurrentQueueInstanceManager.peek(DoFnInstanceManagers.java:48) > > com.google.cloud.dataflow.worker.UserParDoFnFactory.create(UserParDoFnFactory.java:104) > > com.google.cloud.dataflow.worker.DefaultParDoFnFactory.create(DefaultParDoFnFactory.java:66) > > com.google.cloud.dataflow.worker.MapTaskExecutorFactory.createParDoOperation(MapTaskExecutorFactory.java:360) > > com.google.cloud.dataflow.worker.MapTaskExecutorFactory$3.typedApply(MapTaskExecutorFactory.java:271) > > com.google.cloud.dataflow.worker.MapTaskExecutorFactory$3.typedApply(MapTaskExecutorFactory.java:253) > > com.google.cloud.dataflow.worker.graph.Networks$TypeSafeNodeFunction.apply(Networks.java:55) > > com.google.cloud.dataflow.worker.graph.Networks$TypeSafeNodeFunction.apply(Networks.java:43) > > com.google.cloud.dataflow.worker.graph.Networks.replaceDirectedNetworkNodes(Networks.java:78) > > com.google.cloud.dataflow.worker.MapTaskExecutorFactory.create(MapTaskExecutorFactory.java:142) > > com.google.cloud.dataflow.worker.StreamingDataflowWorker.process(StreamingDataflowWorker.java:925) > > com.google.cloud.dataflow.worker.StreamingDataflowWorker.access$800(StreamingDataflowWorker.java:133) > > com.google.cloud.dataflow.worker.StreamingDataflowWorker$7.run(StreamingDataflowWorker.java:771) > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > java.lang.Thread.run(Thread.java:745)* > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)