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https://issues.apache.org/jira/browse/SUREFIRE-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16174433#comment-16174433
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Christian Beikov commented on SUREFIRE-1264:
--------------------------------------------
No security manager or any special flags AFAICT. The message is printed because
of a perm size option that is replaced with metaspace in Java 8. I got rid of
all output you mentioned but it still hangs:
https://travis-ci.org/beikov/calcite/builds/278083407
Travis CI kills builds that don't print anything within 10 minutes, but this
testcase should run through, so it indeed still hangs.
No uses of the mentioned APIs as far as I can see in the code.
I don't understand why this would only be a problem on Linux. Maybe it's a
concurrency issue?
> Some tests can be lost when running in parallel with parameterized tests
> ------------------------------------------------------------------------
>
> Key: SUREFIRE-1264
> URL: https://issues.apache.org/jira/browse/SUREFIRE-1264
> Project: Maven Surefire
> Issue Type: Bug
> Components: Junit 4.7+ (parallel) support
> Affects Versions: 2.19.1
> Environment: Maven 3.3.9
> Java 1.8.0_45 (Oracle)
> System: OS X
> Reproduced on Linux too, with both OpenJDK 7 and Java 7 from Oracle.
> Reporter: Jean-Luc Derrien
> Assignee: Tibor Digana
> Fix For: 2.20.1
>
> Attachments: failure-2.21-snapshot-SUREFIRE-1264.zip, pom.xml
>
> Time Spent: 144h
> Remaining Estimate: 24h
>
> Hello,
> It appears some tests can be lost when using the parallel mode with
> parameterized tests. Here is a [small
> project|https://github.com/jderrien/surefire-junit-tests/tree/simple-1] I've
> used to try to reproduce the issue we have seen.
> This is not something that happens on every run, but it's quite frequent.
> With this loop, the problem should appear in less than 2 minutes, maybe on
> the first run when (un)lucky:
> {code}
> time while true; do mvn clean test > last.log ; tail -25 last.log ; if [
> "$(grep -c 'Tests run: 12' last.log)" == "0" ]; then break; fi ; done
> {code}
> Normal run:
> {noformat}
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running [p2]
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p2] - p2 -
> sleeptime = 1 => start
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p2] - p2 -
> sleeptime = 1 => stop
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p1] - p1 -
> sleeptime = 2 => start
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p1] - p1 -
> sleeptime = 2 => stop
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p0] - p0 -
> sleeptime = 5 => start
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p0] - p0 -
> sleeptime = 5 => stop
> Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 5.006 sec -
> in [p2]
> Running [p2]
> Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.011 sec -
> in [p2]
> Results :
> Tests run: 12, Failures: 0, Errors: 0, Skipped: 0
> {noformat}
> When tests have been lost (here one test lost according to the output):
> {noformat}
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running [p2]
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p0] - p0 -
> sleeptime = 5 => start
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p2] - p2 -
> sleeptime = 1 => start
> com.appnexus.viewability.core.surefireJunitTests.ATest.methodA1[p1] - p1 -
> sleeptime = 2 => start
> Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec -
> in [p2]
> Running [p2]
> Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.012 sec -
> in [p2]
> Results :
> Tests run: 11, Failures: 0, Errors: 0, Skipped: 0
> {noformat}
> Note: there are 3 test classes and 18 tests on the [master
> branch|https://github.com/jderrien/surefire-junit-tests/tree/master] and it's
> even more frequent/easy to reproduce.
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