[jboss-jira] [JBoss JIRA] (WFLY-10253) ConcurrentModificationException on startup

[Dmitrii Tikhomirov (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-10253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dmitrii Tikhomirov reassigned WFLY-10253:
-----------------------------------------

    Assignee: Dmitrii Tikhomirov  (was: Scott Marlow)


> ConcurrentModificationException on startup
> ------------------------------------------
>
>                 Key: WFLY-10253
>                 URL: https://issues.jboss.org/browse/WFLY-10253
>             Project: WildFly
>          Issue Type: Bug
>          Components: JPA / Hibernate
>    Affects Versions: 10.1.0.Final
>            Reporter: Martin Herschke
>            Assignee: Dmitrii Tikhomirov
>
> standalone wildfly startup: This exception appears sporadically and is caused by different modules and projects.
> Multiple threads are used to deploy modules ({{MSC service thread 1-7}}), but a static method {{lookupProvider}} is called. The provider list is a normal ArrayList that causes the exception.
> {code}
> 16:36:23,604 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-7) MSC000001: Failed to start service jboss.deployment.subunit."<our_ear>"."<our_module>".FIRST_MODULE_USE: org.jboss.msc.service.StartException in service jboss.deployment.subunit."<our_ear>"."<our_module>".FIRST_MODULE_USE: WFLYSRV0153: Failed to process phase FIRST_MODULE_USE of subdeployment "<our_module>" of deployment "<our_ear>"
> at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:154)
> at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
> at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.util.ConcurrentModificationException
> at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
> at java.util.ArrayList$Itr.next(ArrayList.java:851)
> at org.jboss.as.jpa.processor.PersistenceUnitServiceHandler.lookupProvider(PersistenceUnitServiceHandler.java:940)
> at org.jboss.as.jpa.processor.PersistenceUnitServiceHandler.nextPhaseDependsOnPersistenceUnit(PersistenceUnitServiceHandler.java:1052)
> at org.jboss.as.jpa.processor.PersistenceUnitServiceHandler.deploy(PersistenceUnitServiceHandler.java:136)
> at org.jboss.as.jpa.processor.PersistenceBeginInstallProcessor.deploy(PersistenceBeginInstallProcessor.java:52)
> at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:147)
> ... 5 more
> {code}



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