[jira] [Created] (CASSANDRA-19868) Fix NPE in InformDurableSerializers

["Alex Petrov (Jira)" <ji...@apache.org>]

Alex Petrov created CASSANDRA-19868:
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             Summary: Fix NPE in InformDurableSerializers
                 Key: CASSANDRA-19868
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-19868
             Project: Cassandra
          Issue Type: Bug
            Reporter: Alex Petrov
            Assignee: Alex Petrov


Currently, R/W concurrent workload may throw:
java.lang.NullPointerException: null
	at org.apache.cassandra.service.accord.serializers.CommandSerializers$TimestampSerializer.serialize(CommandSerializers.java:97)
	at org.apache.cassandra.service.accord.serializers.InformDurableSerializers$1.serializeBody(InformDurableSerializers.java:39)
	at org.apache.cassandra.service.accord.serializers.InformDurableSerializers$1.serializeBody(InformDurableSerializers.java:35)
	at org.apache.cassandra.service.accord.serializers.TxnRequestSerializer.serialize(TxnRequestSerializer.java:46)
	at org.apache.cassandra.service.accord.serializers.TxnRequestSerializer.serialize(TxnRequestSerializer.java:31)
	at org.apache.cassandra.net.Message$Serializer.serialize(Message.java:833)
	at org.apache.cassandra.distributed.impl.Instance.serializeMessage(Instance.java:445)
	at org.apache.cassandra.distributed.impl.Instance.lambda$registerOutboundFilter$5(Instance.java:388)
	at org.apache.cassandra.net.OutboundSink$Filtered.accept(OutboundSink.java:54)
	at org.apache.cassandra.net.OutboundSink.accept(OutboundSink.java:70)
	at org.apache.cassandra.net.MessagingService.send(MessagingService.java:534)
	at org.apache.cassandra.net.MessagingService.send(MessagingService.java:472)
	at org.apache.cassandra.service.accord.AccordMessageSink.send(AccordMessageSink.java:228)
	at accord.local.Node.send(Node.java:526)
	at accord.local.Node.lambda$send$8(Node.java:464)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at accord.local.Node.send(Node.java:464)
	at accord.coordinate.MaybeRecover.onDone(MaybeRecover.java:109)
	at accord.coordinate.ReadCoordinator.handle(ReadCoordinator.java:241)
	at accord.coordinate.ReadCoordinator.onSuccess(ReadCoordinator.java:145)
	at accord.coordinate.ReadCoordinator.onSuccess(ReadCoordinator.java:43)




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