[jira] [Created] (ARROW-8101) [FlightRPC][Java] Can't read/write only an empty null array

["David Li (Jira)" <ji...@apache.org>]

David Li created ARROW-8101:
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             Summary: [FlightRPC][Java] Can't read/write only an empty null array
                 Key: ARROW-8101
                 URL: https://issues.apache.org/jira/browse/ARROW-8101
             Project: Apache Arrow
          Issue Type: Bug
          Components: FlightRPC, Java
    Affects Versions: 0.16.0
            Reporter: David Li
            Assignee: David Li


This is rather an edge case, but Java/Flight fails with a table consisting of only an empty null array, since it has no buffers, and Java assumes this can never happen.

{noformat}
Exception in thread "main" org.apache.arrow.flight.FlightRuntimeException: CallStatus{code=CANCELLED, cause=java.lang.RuntimeException: Unexpected IO Exception, description='Failed to stream message'}
	at org.apache.arrow.flight.CallStatus.toRuntimeException(CallStatus.java:113)
	at org.apache.arrow.flight.grpc.StatusUtils.fromGrpcRuntimeException(StatusUtils.java:134)
	at org.apache.arrow.flight.grpc.StatusUtils.fromThrowable(StatusUtils.java:142)
	at org.apache.arrow.flight.FlightClient$SetStreamObserver.onError(FlightClient.java:315)
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:442)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at org.apache.arrow.flight.grpc.ClientInterceptorAdapter$FlightClientCallListener.onClose(ClientInterceptorAdapter.java:117)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510)
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Unexpected IO Exception
	at org.apache.arrow.flight.ArrowMessage.asInputStream(ArrowMessage.java:334)
	at org.apache.arrow.flight.ArrowMessage.access$000(ArrowMessage.java:64)
	at org.apache.arrow.flight.ArrowMessage$ArrowMessageHolderMarshaller.stream(ArrowMessage.java:382)
	at org.apache.arrow.flight.ArrowMessage$ArrowMessageHolderMarshaller.stream(ArrowMessage.java:372)
	at io.grpc.MethodDescriptor.streamRequest(MethodDescriptor.java:290)
	at io.grpc.internal.ClientCallImpl.sendMessageInternal(ClientCallImpl.java:473)
	at io.grpc.internal.ClientCallImpl.sendMessage(ClientCallImpl.java:457)
	at io.grpc.ForwardingClientCall.sendMessage(ForwardingClientCall.java:37)
	at io.grpc.ForwardingClientCall.sendMessage(ForwardingClientCall.java:37)
	at io.grpc.ForwardingClientCall.sendMessage(ForwardingClientCall.java:37)
	at io.grpc.stub.ClientCalls$CallToStreamObserverAdapter.onNext(ClientCalls.java:341)
	at org.apache.arrow.flight.FlightClient$PutObserver.putNext(FlightClient.java:354)
	at org.apache.arrow.flight.example.integration.IntegrationTestClient.testStream(IntegrationTestClient.java:132)
	at org.apache.arrow.flight.example.integration.IntegrationTestClient.run(IntegrationTestClient.java:96)
	at org.apache.arrow.flight.example.integration.IntegrationTestClient.main(IntegrationTestClient.java:69)
Caused by: java.lang.IllegalArgumentException
	at org.apache.arrow.util.Preconditions.checkArgument(Preconditions.java:122)
	at org.apache.arrow.flight.ArrowMessage.asInputStream(ArrowMessage.java:294)
	... 14 more
{noformat}



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