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https://issues.apache.org/jira/browse/SUREFIRE-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17615458#comment-17615458
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Christoph Läubrich commented on SUREFIRE-2072:
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Can someone please explain a bit where exactly this happens?
org.apache.maven.plugin.surefire.report.TestSetRunListener has
Queue<TestMethodStats> testMethodStats and but I don't see a "cache"
org.apache.maven.plugin.surefire.report.StatelessXmlReporter has Map<String,
Deque<WrappedReportEntry>> testClassMethodRunHistoryMap and that contains
Utf8RecodingDeferredFileOutputStream so is that the culprit as indicated by the
original report (see SUREFIRE-1845)?
> Surefire retains too much heap in some case, leading to OutOfMemory
> -------------------------------------------------------------------
>
> Key: SUREFIRE-2072
> URL: https://issues.apache.org/jira/browse/SUREFIRE-2072
> Project: Maven Surefire
> Issue Type: Bug
> Reporter: Mickael Istria
> Priority: Major
>
> Most likely since SuREFIRE-1845, every test execution can retain 64kB of RAM
> (as cache). Which caching is welcome, this cannot scale with some big test
> suites of several thousands of tests and cause OutOfMemoryError.
> This is the case when running Eclipse JDT dom test suite, since
> tycho-surefire-plugin started to adopt surefire 3.0.0.M6, as described in
> https://github.com/eclipse/tycho/issues/879#issuecomment-1096454637
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