java.lang.NullPointerException: channel

GitHub | biran0079 | 7 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    channel

    at com.google.common.base.Preconditions.checkNotNull()
  2. Guava
    Preconditions.checkNotNull
    1. com.google.common.base.Preconditions.checkNotNull(Preconditions.java:228)
    1 frame
  3. io.grpc.netty
    NettyClientTransport.start
    1. io.grpc.netty.WriteQueue.<init>(WriteQueue.java:76)
    2. io.grpc.netty.NettyClientHandler.startWriteQueue(NettyClientHandler.java:223)
    3. io.grpc.netty.NettyClientTransport.start(NettyClientTransport.java:172)
    3 frames
  4. io.grpc.internal
    ManagedChannelImpl$3.getTransport
    1. io.grpc.internal.ForwardingConnectionClientTransport.start(ForwardingConnectionClientTransport.java:45)
    2. io.grpc.internal.TransportSet.startNewTransport(TransportSet.java:215)
    3. io.grpc.internal.TransportSet.obtainActiveTransport(TransportSet.java:188)
    4. io.grpc.internal.ManagedChannelImpl$3.getTransport(ManagedChannelImpl.java:637)
    5. io.grpc.internal.ManagedChannelImpl$3.getTransport(ManagedChannelImpl.java:579)
    5 frames