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https://issues.apache.org/jira/browse/MRESOLVER-412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17775501#comment-17775501
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Tamas Cservenak commented on MRESOLVER-412:
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CI reported this: different output (due concurrency?) but still parents only:
{noformat}
Error: Failures:
Error:
MavenITmng5669ReadPomsOnce.testWithBuildConsumer:114->AbstractMavenIntegrationTestCase.assertTrue:359
Duplicate items: org.apache.maven:maven:3.2.5
org.apache.commons:commons-parent:52
org.apache.maven:maven-parent:25 ==> expected: <true> but was: <false>
Error:
MavenITmng5669ReadPomsOnce.testWithoutBuildConsumer:78->AbstractMavenIntegrationTestCase.assertTrue:359
Duplicate items: org.codehaus.plexus:plexus:3.3.1
org.codehaus.plexus:plexus:10
org.sonatype.spice:spice-parent:17 ==> expected: <true> but was: <false>
[INFO]
Error: Tests run: 899, Failures: 2, Errors: 0, Skipped: 34
{noformat}
> BF collector causes same model to be loaded up multiple times
> -------------------------------------------------------------
>
> Key: MRESOLVER-412
> URL: https://issues.apache.org/jira/browse/MRESOLVER-412
> Project: Maven Resolver
> Issue Type: Bug
> Components: Resolver
> Reporter: Tamas Cservenak
> Priority: Major
> Fix For: 2.0.0
>
>
> This bug probably affects all released versions of new BF collector.
> Symptom is that Maven with BF collector fails MavenITmng5669ReadPomsOnce both
> test methods. The IT verifies that POM XMLs are _read only once_ with and
> without "consumer POM" feature enabled. Both IT methods fail (so failure is
> irrelevant of consumer POM feature being enabled). Error consistently happens
> on each subsequent IT invokcation, whether empty or prepopulated local repo.
> Most probably cause: old DF was single threaded, while BF uses internally
> thread pool, that seemingly causes that same POM XML is loaded up multiple
> times as ModelBuilder is being asked multi threaded for different models by
> BF collector.
> Reproduce: either run MavenITmng5669ReadPomsOnce but modify the IT to enable
> DF (if using Maven w/ resolver 1.x) or build Maven 4 w/ Resolver 2 (default
> is BF).
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