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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-2105) NullPointerException in client on MetadataRequest
Date Sat, 19 Aug 2017 14:55:00 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-2105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16134129#comment-16134129

ASF GitHub Bot commented on KAFKA-2105:

GitHub user omkreddy opened a pull request:


    KAFKA-2105: add topic null check to KafkaProducer.partitionsFor method


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/omkreddy/kafka KAFKA-2105

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3697
commit 7a67d783571165cfc4fa5a301aeaaa3a139273af
Author: Manikumar Reddy <manikumar.reddy@gmail.com>
Date:   2017-08-19T14:46:35Z

    KAFKA-2105: add null check to KafkaProducer.partitionsFor method


> NullPointerException in client on MetadataRequest
> -------------------------------------------------
>                 Key: KAFKA-2105
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2105
>             Project: Kafka
>          Issue Type: Bug
>          Components: clients
>    Affects Versions:
>            Reporter: Roger Hoover
>            Priority: Minor
>         Attachments: guard-from-null.patch
> With the new producer, if you accidentally pass null to KafkaProducer.partitionsFor(null),
it will cause the IO thread to throw NPE.
> Uncaught error in kafka producer I/O thread: 
> java.lang.NullPointerException
> 	at org.apache.kafka.common.utils.Utils.utf8Length(Utils.java:174)
> 	at org.apache.kafka.common.protocol.types.Type$5.sizeOf(Type.java:176)
> 	at org.apache.kafka.common.protocol.types.ArrayOf.sizeOf(ArrayOf.java:55)
> 	at org.apache.kafka.common.protocol.types.Schema.sizeOf(Schema.java:81)
> 	at org.apache.kafka.common.protocol.types.Struct.sizeOf(Struct.java:218)
> 	at org.apache.kafka.common.requests.RequestSend.serialize(RequestSend.java:35)
> 	at org.apache.kafka.common.requests.RequestSend.<init>(RequestSend.java:29)
> 	at org.apache.kafka.clients.NetworkClient.metadataRequest(NetworkClient.java:369)
> 	at org.apache.kafka.clients.NetworkClient.maybeUpdateMetadata(NetworkClient.java:391)
> 	at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:188)
> 	at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191)
> 	at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122)
> 	at java.lang.Thread.run(Thread.java:745)

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