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Date: Mon, 16 Oct 2017 09:28:00 +0000 (UTC)
From: "Andras Bokor (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HADOOP-14178) Move Mockito up to version 2.x
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archived-at: Mon, 16 Oct 2017 09:28:05 -0000


    [ https://issues.apache.org/jira/browse/HADOOP-14178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16205621#comment-16205621 ] 

Andras Bokor commented on HADOOP-14178:
---------------------------------------

The 607 javac warnings make sense:

* 385 because [Matchers|https://static.javadoc.io/org.mockito/mockito-core/2.10.0/org/mockito/Matchers.html] class has been deprecated. [ArgumentMatchers|https://static.javadoc.io/org.mockito/mockito-core/2.10.0/org/mockito/ArgumentMatchers.html] should be used instead.
* 169 because of new WhiteBox.java
* 6 because of org.mockito.runners.MockitoJUnitRunner was moved to org.mockito.junit.MockitoJUnitRunner.
* The rest 47 warnings are because of Java8's [Target Type|https://docs.oracle.com/javase/tutorial/java/generics/genTypeInference.html#target_types] feature. So in Mockito 2 any() can be used instead of anyObject, anyList insterad of anyListOf and so on.

So all the 607 warnings because API change in Mockito so nothing dangerous.

I think they can be fixed either with this JIRA or separate JIRA(s) it's up to you.


> Move Mockito up to version 2.x
> ------------------------------
>
>                 Key: HADOOP-14178
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14178
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: test
>    Affects Versions: 2.9.0
>            Reporter: Steve Loughran
>            Assignee: Akira Ajisaka
>         Attachments: HADOOP-14178.001.patch, HADOOP-14178.002.patch, HADOOP-14178.003.patch, HADOOP-14178.004.patch
>
>
> I don't know when Hadoop picked up Mockito, but it has been frozen at 1.8.5 since the switch to maven in 2011. 
> Mockito is now at version 2.1, [with lots of Java 8 support|https://github.com/mockito/mockito/wiki/What%27s-new-in-Mockito-2]. That' s not just defining actions as closures, but in supporting Optional types, mocking methods in interfaces, etc. 
> It's only used for testing, and, *provided there aren't regressions*, cost of upgrade is low. The good news: test tools usually come with good test coverage. The bad: mockito does go deep into java bytecodes.


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