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https://issues.apache.org/jira/browse/KAFKA-4761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on KAFKA-4761 started by Jason Gustafson.
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> NullPointerException if batch.size=0 for producer config
> --------------------------------------------------------
>
> Key: KAFKA-4761
> URL: https://issues.apache.org/jira/browse/KAFKA-4761
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 0.10.2.0
> Environment: jdk1.8.0_40
> Reporter: Swen Moczarski
> Assignee: Jason Gustafson
> Priority: Minor
> Attachments: KafkaProducerTest.java
>
>
> When setting {{batch.size}} to {{0}} for producer I get the following
> exception when sending a record:
> {noformat}
> java.lang.NullPointerException
> at org.apache.kafka.common.utils.Utils.notNull(Utils.java:315)
> at
> org.apache.kafka.clients.producer.internals.RecordAccumulator.append(RecordAccumulator.java:197)
> at
> org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:478)
> at
> org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:440)
> at
> org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:360)
> at KafkaProducerTest.exposeNpeOnBatchSizeZero(KafkaProducerTest.java:21)
> {noformat}
> But documentation says:
> {quote}
> ... (a batch size of zero will disable batching entirely).
> {quote}
> Please, see attached test.
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