grpc-java: Exception java.lang.IllegalStateException: Could not find policy 'pick_first'

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What version of gRPC are you using?

1.18.0

When executing the Quickstart class of Google Firestore Service I get this exception. https://cloud.google.com/firestore/docs/quickstart-servers

Mar 24, 2019 7:16:18 PM io.grpc.internal.ManagedChannelImpl$1 uncaughtException
SEVERE: [Channel<1>: (firestore.googleapis.com:443)] Uncaught exception in the SynchronizationContext. Panic!
java.lang.IllegalStateException: Could not find policy 'pick_first'. Make sure its implementation is either registered to LoadBalancerRegistry or included in META-INF/services/io.grpc.LoadBalancerProvider from your jar files.
        at io.grpc.internal.AutoConfiguredLoadBalancerFactory$AutoConfiguredLoadBalancer.<init>(AutoConfiguredLoadBalancerFactory.java:93)
        at io.grpc.internal.AutoConfiguredLoadBalancerFactory.newLoadBalancer(AutoConfiguredLoadBalancerFactory.java:64)
        at io.grpc.internal.ManagedChannelImpl.exitIdleMode(ManagedChannelImpl.java:357)
        at io.grpc.internal.ManagedChannelImpl$ChannelTransportProvider$1ExitIdleModeForTransport.run(ManagedChannelImpl.java:455)
        at io.grpc.SynchronizationContext.drain(SynchronizationContext.java:101)
        at io.grpc.SynchronizationContext.execute(SynchronizationContext.java:130)
        at io.grpc.internal.ManagedChannelImpl$ChannelTransportProvider.get(ManagedChannelImpl.java:459)
        at io.grpc.internal.ClientCallImpl.start(ClientCallImpl.java:241)
        at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1.start(CensusTracingModule.java:392)
        at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1.start(CensusStatsModule.java:694)
        at io.grpc.ForwardingClientCall.start(ForwardingClientCall.java:32)
        at com.google.api.gax.grpc.GrpcHeaderInterceptor$1.start(GrpcHeaderInterceptor.java:95)
        at io.grpc.stub.ClientCalls.startCall(ClientCalls.java:308)
        at io.grpc.stub.ClientCalls.asyncUnaryRequestCall(ClientCalls.java:280)
        at io.grpc.stub.ClientCalls.futureUnaryCall(ClientCalls.java:189)
        at com.google.api.gax.grpc.GrpcDirectCallable.futureCall(GrpcDirectCallable.java:58)
        at com.google.api.gax.grpc.GrpcExceptionCallable.futureCall(GrpcExceptionCallable.java:64)
        at com.google.api.gax.tracing.TracedUnaryCallable.futureCall(TracedUnaryCallable.java:75)
        at com.google.api.gax.rpc.UnaryCallable$1.futureCall(UnaryCallable.java:126)
        at com.google.api.gax.rpc.UnaryCallable.futureCall(UnaryCallable.java:87)
        at com.google.cloud.firestore.FirestoreImpl.sendRequest(FirestoreImpl.java:413)
        at com.google.cloud.firestore.UpdateBuilder.commit(UpdateBuilder.java:621)
        at com.google.cloud.firestore.WriteBatch.commit(WriteBatch.java:41)
        at com.google.cloud.firestore.DocumentReference.set(DocumentReference.java:172)
        at Main.main(Main.java:26)

java.util.concurrent.ExecutionException: com.google.api.gax.rpc.InternalException: io.grpc.StatusRuntimeException: INTERNAL: Panic! This is a bug!
        at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:531)
        at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:492)
        at com.google.common.util.concurrent.AbstractFuture$TrustedFuture.get(AbstractFuture.java:83)
        at com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:62)
        at Main.main(Main.java:30)
Caused by: com.google.api.gax.rpc.InternalException: io.grpc.StatusRuntimeException: INTERNAL: Panic! This is a bug!
        at com.google.api.gax.rpc.ApiExceptionFactory.createException(ApiExceptionFactory.java:67)
        at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:72)
        at com.google.api.gax.grpc.GrpcApiExceptionFactory.create(GrpcApiExceptionFactory.java:60)
        at com.google.api.gax.grpc.GrpcExceptionCallable$ExceptionTransformingFuture.onFailure(GrpcExceptionCallable.java:97)
        at com.google.api.core.ApiFutures$1.onFailure(ApiFutures.java:68)
        at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1052)
        at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:398)
        at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1030)
        at com.google.common.util.concurrent.AbstractFuture.addListener(AbstractFuture.java:675)
        at com.google.common.util.concurrent.ForwardingListenableFuture.addListener(ForwardingListenableFuture.java:45)
        at com.google.api.core.ApiFutureToListenableFuture.addListener(ApiFutureToListenableFuture.java:52)
        at com.google.common.util.concurrent.Futures.addCallback(Futures.java:1033)
        at com.google.api.core.ApiFutures.addCallback(ApiFutures.java:63)
        at com.google.api.gax.grpc.GrpcExceptionCallable.futureCall(GrpcExceptionCallable.java:67)
        at com.google.api.gax.tracing.TracedUnaryCallable.futureCall(TracedUnaryCallable.java:75)
        at com.google.api.gax.rpc.UnaryCallable$1.futureCall(UnaryCallable.java:126)
        at com.google.api.gax.rpc.UnaryCallable.futureCall(UnaryCallable.java:87)
        at com.google.cloud.firestore.FirestoreImpl.sendRequest(FirestoreImpl.java:413)
        at com.google.cloud.firestore.UpdateBuilder.commit(UpdateBuilder.java:621)
        at com.google.cloud.firestore.WriteBatch.commit(WriteBatch.java:41)
        at com.google.cloud.firestore.DocumentReference.set(DocumentReference.java:172)
        at Main.main(Main.java:26)
Caused by: io.grpc.StatusRuntimeException: INTERNAL: Panic! This is a bug!
        at io.grpc.Status.asRuntimeException(Status.java:530)
        at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:482)
        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$1.onClose(CensusStatsModule.java:699)
        at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
        at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
        at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
        at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:397)
        at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:459)
        at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63)
        at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:546)
        at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:467)
        at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:584)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: Could not find policy 'pick_first'. Make sure its implementation is either registered to LoadBalancerRegistry or included in META-INF/services/io.grpc.LoadBalancerProvider from your jar files.
        at io.grpc.internal.AutoConfiguredLoadBalancerFactory$AutoConfiguredLoadBalancer.<init>(AutoConfiguredLoadBalancerFactory.java:93)
        at io.grpc.internal.AutoConfiguredLoadBalancerFactory.newLoadBalancer(AutoConfiguredLoadBalancerFactory.java:64)
        at io.grpc.internal.ManagedChannelImpl.exitIdleMode(ManagedChannelImpl.java:357)
        at io.grpc.internal.ManagedChannelImpl$ChannelTransportProvider$1ExitIdleModeForTransport.run(ManagedChannelImpl.java:455)
        at io.grpc.SynchronizationContext.drain(SynchronizationContext.java:101)
        at io.grpc.SynchronizationContext.execute(SynchronizationContext.java:130)
        at io.grpc.internal.ManagedChannelImpl$ChannelTransportProvider.get(ManagedChannelImpl.java:459)
        at io.grpc.internal.ClientCallImpl.start(ClientCallImpl.java:241)
        at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1.start(CensusTracingModule.java:392)
        at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1.start(CensusStatsModule.java:694)
        at io.grpc.ForwardingClientCall.start(ForwardingClientCall.java:32)
        at com.google.api.gax.grpc.GrpcHeaderInterceptor$1.start(GrpcHeaderInterceptor.java:95)
        at io.grpc.stub.ClientCalls.startCall(ClientCalls.java:308)
        at io.grpc.stub.ClientCalls.asyncUnaryRequestCall(ClientCalls.java:280)
        at io.grpc.stub.ClientCalls.futureUnaryCall(ClientCalls.java:189)
        at com.google.api.gax.grpc.GrpcDirectCallable.futureCall(GrpcDirectCallable.java:58)
        at com.google.api.gax.grpc.GrpcExceptionCallable.futureCall(GrpcExceptionCallable.java:64)
        at com.google.api.gax.tracing.TracedUnaryCallable.futureCall(TracedUnaryCallable.java:75)
        at com.google.api.gax.rpc.UnaryCallable$1.futureCall(UnaryCallable.java:126)
        at com.google.api.gax.rpc.UnaryCallable.futureCall(UnaryCallable.java:87)
        at com.google.cloud.firestore.FirestoreImpl.sendRequest(FirestoreImpl.java:413)
        at com.google.cloud.firestore.UpdateBuilder.commit(UpdateBuilder.java:621)
        at com.google.cloud.firestore.WriteBatch.commit(WriteBatch.java:41)
        at com.google.cloud.firestore.DocumentReference.set(DocumentReference.java:172)
        at Main.main(Main.java:26)

About this issue

  • Original URL
  • State: closed
  • Created 5 years ago
  • Comments: 17 (10 by maintainers)

Most upvoted comments

Turns out it was due to the Gradle Shadow plugin not merging service files by default. I just had to add this to my build.gradle and it works for me:

shadowJar {
    mergeServiceFiles()
}
+4
mpdn on Apr 1, 2019

For Maven Shade plugin, was able to fix it by configuring to use ServicesResourceTransformer.

+2
saturnism on Apr 2, 2019
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