[jira] [Resolved] (KAFKA-4401) Change the KafkaServerTestHarness and IntegrationTestHarness from trait to abstract class.

["Jiangjie Qin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-4401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jiangjie Qin resolved KAFKA-4401.
---------------------------------
    Resolution: Fixed

> Change the KafkaServerTestHarness and IntegrationTestHarness from trait to abstract class.
> ------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-4401
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4401
>             Project: Kafka
>          Issue Type: Task
>          Components: unit tests
>    Affects Versions: 0.10.1.0
>            Reporter: Jiangjie Qin
>            Assignee: Jiangjie Qin
>
> The IntegartionTestHarness and KafkaServerTestHarness are useful not only in Kafka unit test, but also useful for the unit tests in other products that depend on Kafka.
> Currently there are two issues making those two test harness classes hard to use by other Java users.
> 1. The two classes are Scala traits. This makes it difficult for people to write Java unit test code. 
> 2. Some of the interfaces are Scala only. 
> It will be good to expose those two classes for more general usage and make them Java friendly.



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