[infinispan-issues] [JBoss JIRA] Commented: (ISPN-220) Test suite has memory leaks

Mon Oct 12 15:50:05 EDT 2009

    [ https://jira.jboss.org/jira/browse/ISPN-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12489434#action_12489434 ] 

Vladimir Blagojevic commented on ISPN-220:
------------------------------------------

As long as test class inherits from AbstractInfinispanTest all test class fields references will be nulled. However, if possible, a practice of not using test class fields should be employed.  

> Test suite has memory leaks
> ---------------------------
>
>                 Key: ISPN-220
>                 URL: https://jira.jboss.org/jira/browse/ISPN-220
>             Project: Infinispan
>          Issue Type: Bug
>    Affects Versions: 4.0.0.BETA2
>            Reporter: Vladimir Blagojevic
>            Assignee: Vladimir Blagojevic
>             Fix For: 4.0.0.CR1
>
>         Attachments: biggest_leakers.zip, infinispan_leak.zip
>
>
> During an execution of a test suite TestNG keeps references to all executed test class instances. Some of our test classes keep references to instantiated caches, cache managers, and other heavy weight objects thus preventing those references from ever being garbage collected. 
> Our test classes should *never* keep references to heavyweight objects other than in a test method scope. If we must keep reference to a cache or a cache manager in a class scope these references should be cleared and nulled in a method annotated with @AfterClass.

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