Thank you for reporting! That is definitely a bug, and I have opened a ticket to fix which you can track here.
https://issues.apache.org/jira/browse/FLINK-26374 Seth On Thu, Feb 24, 2022 at 4:18 PM Jonathan Weaver <myordinat...@gmail.com> wrote: > Using the latest SNAPSHOT BUILD. > > If I have a column definition as > > .column( > "events", > DataTypes.ARRAY( > DataTypes.ROW( > DataTypes.FIELD("status", > DataTypes.STRING().notNull()), > DataTypes.FIELD("timestamp", > DataTypes.STRING().notNull()), > DataTypes.FIELD("increment_identifier", > DataTypes.STRING().nullable())))) > > And a query as > > JSON_OBJECT('events' VALUE events) event_json > > Will generate JSON correctly ONLY if increment_identifier is NOT NULL but > will throw a NullPointerException on the first record that has that column > as null. > > Exception is not helpful. > > Exception in thread "main" > org.apache.flink.runtime.client.JobExecutionException: Job execution failed. > at > org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:144) > at > org.apache.flink.runtime.minicluster.MiniClusterJobClient.lambda$getJobExecutionResult$3(MiniClusterJobClient.java:141) > at > java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:642) > at > java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) > at > java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) > at > org.apache.flink.runtime.rpc.akka.AkkaInvocationHandler.lambda$invokeRpc$1(AkkaInvocationHandler.java:259) > at > java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) > at > java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) > at > java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) > at > java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) > at > org.apache.flink.util.concurrent.FutureUtils.doForward(FutureUtils.java:1389) > at > org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.lambda$null$1(ClassLoadingUtils.java:93) > at > org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:68) > at > org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.lambda$guardCompletionWithContextClassLoader$2(ClassLoadingUtils.java:92) > at > java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) > at > java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) > at > java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) > at > java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) > at > org.apache.flink.runtime.concurrent.akka.AkkaFutureUtils$1.onComplete(AkkaFutureUtils.java:47) > at akka.dispatch.OnComplete.internal(Future.scala:300) > at akka.dispatch.OnComplete.internal(Future.scala:297) > at akka.dispatch.japi$CallbackBridge.apply(Future.scala:224) > at akka.dispatch.japi$CallbackBridge.apply(Future.scala:221) > at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:60) > at > org.apache.flink.runtime.concurrent.akka.AkkaFutureUtils$DirectExecutionContext.execute(AkkaFutureUtils.java:65) > at > scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:68) > at > scala.concurrent.impl.Promise$DefaultPromise.$anonfun$tryComplete$1(Promise.scala:284) > at > scala.concurrent.impl.Promise$DefaultPromise.$anonfun$tryComplete$1$adapted(Promise.scala:284) > at > scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:284) > at akka.pattern.PromiseActorRef.$bang(AskSupport.scala:621) > at > akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:24) > at > akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:23) > at scala.concurrent.Future.$anonfun$andThen$1(Future.scala:532) > at scala.concurrent.impl.Promise.liftedTree1$1(Promise.scala:29) > at scala.concurrent.impl.Promise.$anonfun$transform$1(Promise.scala:29) > at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:60) > at > akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:63) > at > akka.dispatch.BatchingExecutor$BlockableBatch.$anonfun$run$1(BatchingExecutor.scala:100) > at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12) > at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:81) > at > akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:100) > at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:49) > at > akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:48) > at > java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) > at > java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020) > at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656) > at > java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594) > at > java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183) > Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed > by NoRestartBackoffTimeStrategy > at > org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:138) > at > org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:82) > at > org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:301) > at > org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:291) > at > org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:282) > at > org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:739) > at > org.apache.flink.runtime.scheduler.SchedulerNG.updateTaskExecutionState(SchedulerNG.java:78) > at > org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:443) > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native > Method) > at > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.base/java.lang.reflect.Method.invoke(Method.java:566) > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.lambda$handleRpcInvocation$1(AkkaRpcActor.java:304) > at > org.apache.flink.runtime.concurrent.akka.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:83) > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:302) > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:217) > at > org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:78) > at > org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:163) > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:24) > at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:20) > at scala.PartialFunction.applyOrElse(PartialFunction.scala:123) > at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122) > at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:20) > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171) > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) > at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172) > at akka.actor.Actor.aroundReceive(Actor.scala:537) > at akka.actor.Actor.aroundReceive$(Actor.scala:535) > at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:220) > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:580) > at akka.actor.ActorCell.invoke(ActorCell.scala:548) > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270) > at akka.dispatch.Mailbox.run(Mailbox.scala:231) > at akka.dispatch.Mailbox.exec(Mailbox.scala:243) > ... 5 more > Caused by: java.lang.NullPointerException > at StreamExecCalc$422.convertRow$317$(Unknown Source) > at StreamExecCalc$422.convertArray$316$(Unknown Source) > at StreamExecCalc$422.processElement_split71(Unknown Source) > at StreamExecCalc$422.processElement(Unknown Source) > at > org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.pushToOperator(CopyingChainingOutput.java:82) > at > org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:57) > at > org.apache.flink.streaming.runtime.tasks.CopyingChainingOutput.collect(CopyingChainingOutput.java:29) > at > org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:56) > at > org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:29) > at > org.apache.flink.streaming.api.operators.TimestampedCollector.collect(TimestampedCollector.java:51) > at > org.apache.flink.streaming.api.operators.async.queue.StreamRecordQueueEntry.emitResult(StreamRecordQueueEntry.java:64) > at > org.apache.flink.streaming.api.operators.async.queue.OrderedStreamElementQueue.emitCompletedElement(OrderedStreamElementQueue.java:71) > at > org.apache.flink.streaming.api.operators.async.AsyncWaitOperator.outputCompletedElement(AsyncWaitOperator.java:302) > at > org.apache.flink.streaming.api.operators.async.AsyncWaitOperator.access$100(AsyncWaitOperator.java:79) > at > org.apache.flink.streaming.api.operators.async.AsyncWaitOperator$ResultHandler.processResults(AsyncWaitOperator.java:381) > at > org.apache.flink.streaming.api.operators.async.AsyncWaitOperator$ResultHandler.lambda$processInMailbox$0(AsyncWaitOperator.java:362) > at > org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:50) > at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90) > at > org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMailsWhenDefaultActionUnavailable(MailboxProcessor.java:338) > at > org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:324) > at > org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:201) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:804) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:753) > at > org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948) > at > org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927) > at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741) > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563) > at java.base/java.lang.Thread.run(Thread.java:829) > > >
