Callback onResult call produced an error java.lang.NullPointerException
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at com.mongodb.operation.AsyncQueryBatchCursor$CommandResultSingleResultCallback.onResult(AsyncQueryBatchCursor.java:255) ~[mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.operation.AsyncQueryBatchCursor$CommandResultSingleResultCallback.onResult(AsyncQueryBatchCursor.java:235) ~[mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor$1.onResult(DefaultServer.java:185) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.CommandProtocol$CommandResultCallback.callCallback(CommandProtocol.java:271) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.ResponseCallback.onResult(ResponseCallback.java:48) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.ResponseCallback.onResult(ResponseCallback.java:23) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.DefaultConnectionPool$PooledConnection$2.onResult(DefaultConnectionPool.java:470) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.DefaultConnectionPool$PooledConnection$2.onResult(DefaultConnectionPool.java:464) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.UsageTrackingInternalConnection$3.onResult(UsageTrackingInternalConnection.java:119) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.UsageTrackingInternalConnection$3.onResult(UsageTrackingInternalConnection.java:115) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection.executeCallbackAndReceiveResponse(InternalStreamConnection.java:378) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection.access$1700(InternalStreamConnection.java:66) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseBuffersCallback.onResult(InternalStreamConnection.java:420) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseBuffersCallback.onResult(InternalStreamConnection.java:389) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback.onSuccess(InternalStreamConnection.java:562) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback.access$2200(InternalStreamConnection.java:517) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback$ResponseBodyCallback.onResult(InternalStreamConnection.java:584) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback$ResponseBodyCallback.onResult(InternalStreamConnection.java:568) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$3.completed(InternalStreamConnection.java:447) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$3.completed(InternalStreamConnection.java:444) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.AsynchronousSocketChannelStream$BasicCompletionHandler.completed(AsynchronousSocketChannelStream.java:218) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.AsynchronousSocketChannelStream$BasicCompletionHandler.completed(AsynchronousSocketChannelStream.java:201) [mongodb-driver-core-3.4.2.jar!/:?]
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at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [?:1.8.0_112]
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at sun.nio.ch.Invoker.invokeDirect(Invoker.java:157) [?:1.8.0_112]
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at sun.nio.ch.UnixAsynchronousSocketChannelImpl.implRead(UnixAsynchronousSocketChannelImpl.java:553) [?:1.8.0_112]
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at sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:276) [?:1.8.0_112]
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at sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:297) [?:1.8.0_112]
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at com.mongodb.connection.AsynchronousSocketChannelStream.readAsync(AsynchronousSocketChannelStream.java:125) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection.readAsync(InternalStreamConnection.java:444) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection.access$2000(InternalStreamConnection.java:66) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback.onResult(InternalStreamConnection.java:541) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$ResponseHeaderCallback.onResult(InternalStreamConnection.java:517) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.internal.async.ErrorHandlingResultCallback.onResult(ErrorHandlingResultCallback.java:49) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$3.completed(InternalStreamConnection.java:447) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.InternalStreamConnection$3.completed(InternalStreamConnection.java:444) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.AsynchronousSocketChannelStream$BasicCompletionHandler.completed(AsynchronousSocketChannelStream.java:218) [mongodb-driver-core-3.4.2.jar!/:?]
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at com.mongodb.connection.AsynchronousSocketChannelStream$BasicCompletionHandler.completed(AsynchronousSocketChannelStream.java:201) [mongodb-driver-core-3.4.2.jar!/:?]
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at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [?:1.8.0_112]
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at sun.nio.ch.UnixAsynchronousSocketChannelImpl.finishRead(UnixAsynchronousSocketChannelImpl.java:430) [?:1.8.0_112]
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at sun.nio.ch.UnixAsynchronousSocketChannelImpl.finish(UnixAsynchronousSocketChannelImpl.java:191) [?:1.8.0_112]
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at sun.nio.ch.UnixAsynchronousSocketChannelImpl.onEvent(UnixAsynchronousSocketChannelImpl.java:213) [?:1.8.0_112]
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at sun.nio.ch.EPollPort$EventHandlerTask.run(EPollPort.java:293) [?:1.8.0_112]
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at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) [?:1.8.0_112]
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at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_112]
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at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_112]
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at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
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