[ 
https://jira.codehaus.org/browse/SUREFIRE-1114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Tibor Digana updated SUREFIRE-1114:
-----------------------------------

    Attachment: 
org.apache.maven.surefire.its.CheckTestNgGroupThreadParallelIT.txt

This issue was fond after running IT tests "CheckTestNgGroupThreadParallelIT" 
of Maven Surefire Project.
The CPU was fully overloaded which was maybe precondition in this issue.
The problem is that the TestNG runs test methods in parallel and the 
TestSetRunListener crashes.
The field "reportEntries" in the class "TestSetStats" referenced ArrayList. 
This collection is not thread-safe which means that the retrieval of the 
elements is not guaranteed.
The elements are added in TestSetStats#finishTest(). The elements are never 
null, see the TestSetRunListener#testSucceeded() which passed a newly created 
instance of WrappedReportEntry from wrap().

Caused by: java.lang.NullPointerException
        at 
org.apache.maven.plugin.surefire.report.TestSetStats.getTestResults(TestSetStats.java:229)
        at 
org.apache.maven.plugin.surefire.report.TestSetRunListener.testSetCompleted(TestSetRunListener.java:130)
        at 
org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.finishTestSuite(TestNGDirectoryTestSuite.java:306)

> NPE in TestSetStats. Concurrency issue with parallel methods on TestNG.
> -----------------------------------------------------------------------
>
>                 Key: SUREFIRE-1114
>                 URL: https://jira.codehaus.org/browse/SUREFIRE-1114
>             Project: Maven Surefire
>          Issue Type: Bug
>          Components: Maven Surefire Plugin
>    Affects Versions: 2.18
>            Reporter: Tibor Digana
>            Assignee: Tibor Digana
>         Attachments: 
> org.apache.maven.surefire.its.CheckTestNgGroupThreadParallelIT.txt
>
>




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