[
https://issues.apache.org/jira/browse/KAFKA-897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Colin B. updated KAFKA-897:
---------------------------
Description:
The protocol document [1] mentions that keys and values in message sets can be
null. However the ConsoleConsumer throws a NPE when a null is passed for the
value.
java.lang.NullPointerException
at kafka.utils.Utils$.readBytes(Utils.scala:141)
at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:106)
at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:33)
at
kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:61)
at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:53)
at scala.collection.Iterator$class.foreach(Iterator.scala:631)
at kafka.utils.IteratorTemplate.foreach(IteratorTemplate.scala:32)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:79)
at kafka.consumer.KafkaStream.foreach(KafkaStream.scala:25)
at kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:195)
at kafka.consumer.ConsoleConsumer.main(ConsoleConsumer.scala)
[1]
https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-Messagesets
was:
The [protocol
document|https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-Messagesets]
mentions that keys and values in message sets can be null. However the
ConsoleConsumer throws a NPE when a null is passed for the value.
{quote}
java.lang.NullPointerException
at kafka.utils.Utils$.readBytes(Utils.scala:141)
at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:106)
at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:33)
at
kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:61)
at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:53)
at scala.collection.Iterator$class.foreach(Iterator.scala:631)
at kafka.utils.IteratorTemplate.foreach(IteratorTemplate.scala:32)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:79)
at kafka.consumer.KafkaStream.foreach(KafkaStream.scala:25)
at kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:195)
at kafka.consumer.ConsoleConsumer.main(ConsoleConsumer.scala)
{quote}
> NullPointerException in ConsoleConsumer
> ---------------------------------------
>
> Key: KAFKA-897
> URL: https://issues.apache.org/jira/browse/KAFKA-897
> Project: Kafka
> Issue Type: Bug
> Components: consumer
> Affects Versions: 0.8
> Reporter: Colin B.
> Assignee: Neha Narkhede
> Priority: Minor
>
> The protocol document [1] mentions that keys and values in message sets can
> be null. However the ConsoleConsumer throws a NPE when a null is passed for
> the value.
> java.lang.NullPointerException
> at kafka.utils.Utils$.readBytes(Utils.scala:141)
> at
> kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:106)
> at kafka.consumer.ConsumerIterator.makeNext(ConsumerIterator.scala:33)
> at
> kafka.utils.IteratorTemplate.maybeComputeNext(IteratorTemplate.scala:61)
> at kafka.utils.IteratorTemplate.hasNext(IteratorTemplate.scala:53)
> at scala.collection.Iterator$class.foreach(Iterator.scala:631)
> at kafka.utils.IteratorTemplate.foreach(IteratorTemplate.scala:32)
> at scala.collection.IterableLike$class.foreach(IterableLike.scala:79)
> at kafka.consumer.KafkaStream.foreach(KafkaStream.scala:25)
> at kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:195)
> at kafka.consumer.ConsoleConsumer.main(ConsoleConsumer.scala)
> [1]
> https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-Messagesets
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