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| io.grpc.StatusRuntimeException: INTERNAL: Connection closed with unknown cause
at io.grpc.Status.asRuntimeException(Status.java:526)
at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:380)
at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:419)
at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:60)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:493)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$500(ClientCallImpl.java:422)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:525)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:102)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
ERROR OrdererClient - Channel mychannel sendDeliver failed on orderer orderer.example.com. Reason: INTERNAL: Connection closed with unknown cause
org.hyperledger.fabric.sdk.exception.TransactionException: Channel mychannel sendDeliver failed on orderer orderer.example.com. Reason: INTERNAL: Connection closed with unknown cause
at org.hyperledger.fabric.sdk.OrdererClient.sendDeliver(OrdererClient.java:295)
at org.hyperledger.fabric.sdk.Orderer.sendDeliver(Orderer.java:172)
at org.hyperledger.fabric.sdk.Channel.seekBlock(Channel.java:1198)
at org.hyperledger.fabric.sdk.Channel.getLatestBlock(Channel.java:1274)
at org.hyperledger.fabric.sdk.Channel.getLastConfigIndex(Channel.java:1097)
at org.hyperledger.fabric.sdk.Channel.getConfigurationBlock(Channel.java:1028)
at org.hyperledger.fabric.sdk.Channel.parseConfigBlock(Channel.java:949)
at org.hyperledger.fabric.sdk.Channel.initialize(Channel.java:676)
at com.example.fabric.HFJavaSDKBasicExample.getChannel(HFJavaSDKBasicExample.java:196)
at com.example.fabric.HFJavaSDKBasicExample.main(HFJavaSDKBasicExample.java:63)
Caused by: io.grpc.StatusRuntimeException: INTERNAL: Connection closed with unknown cause
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