[jira] [Updated] (KAFKA-2358) Cluster collection returning methods should never return null

["Guozhang Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-2358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang updated KAFKA-2358:
---------------------------------
    Reviewer: Jason Gustafson

Assigning to [~hachikuji] to review and check if it is already fixed in KAFKA-2880.

> Cluster collection returning methods should never return null
> -------------------------------------------------------------
>
>                 Key: KAFKA-2358
>                 URL: https://issues.apache.org/jira/browse/KAFKA-2358
>             Project: Kafka
>          Issue Type: Improvement
>    Affects Versions: 0.9.0.0
>            Reporter: Stevo Slavic
>            Priority: Minor
>
> {{KafkaConsumer.partitionsFor}} method by it's signature returns a {{List<PartitionInfo>}}. Problem is that in case (metadata for) topic does not exist, current implementation will return null, which is considered a bad practice - instead of null it should return empty list.
> Root cause is that the Cluster collection returning methods are returning null.



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