[jboss-jira] [JBoss JIRA] (WFCORE-3948) Potential race condition on deployment of EAR when Class-Path manifest entry is in use

[Cheng Fang (Jira)]

    [ https://issues.jboss.org/browse/WFCORE-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13788138#comment-13788138 ] 

Cheng Fang commented on WFCORE-3948:
------------------------------------

{code}
 	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:183) [wildfly-server-10.0.0.Beta9.jar:10.0.0.Beta9]
 	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739) [jboss-msc-1.4.11.Final.jar:1.4.11.Final]
 	at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701) [jboss-msc-1.4.11.Final.jar:1.4.11.Final]
 	at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559) [jboss-msc-1.4.11.Final.jar:1.4.11.Final]
 	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) [jboss-threads-2.3.3.Final.jar:2.3.3.Final]
 	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982) [jboss-threads-2.3.3.Final.jar:2.3.3.Final]
 	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486) [jboss-threads-2.3.3.Final.jar:2.3.3.Final]
 	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1363) [jboss-threads-2.3.3.Final.jar:2.3.3.Final]
 	at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_191]
 Caused by: java.util.ConcurrentModificationException
 	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909) [rt.jar:1.8.0_191]
 	at java.util.ArrayList$Itr.next(ArrayList.java:859) [rt.jar:1.8.0_191]
 	at java.util.Collections$CheckedCollection$1.next(Collections.java:3076) [rt.jar:1.8.0_191]
 	at org.jboss.as.server.deployment.module.ManifestDependencyProcessor.deploy(ManifestDependencyProcessor.java:73) [wildfly-server-10.0.0.Beta9.jar:10.0.0.Beta9]
 	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:176) [wildfly-server-10.0.0.Beta9.jar:10.0.0.Beta9]
 	... 8 more
 
 23:12:56,985 ERROR [org.jboss.as] (Controller Boot Thread) WFLYSRV0026: WildFly Full 18.0.0.Final-SNAPSHOT (WildFly Core 10.0.0.Beta9) started (with errors) in 10276ms - Started 468 of 478 services (3 services failed or missing dependencies, 301 services are lazy, passive or on-demand)

{code}

> Potential race condition on deployment of EAR when Class-Path manifest entry is in use
> --------------------------------------------------------------------------------------
>
>                 Key: WFCORE-3948
>                 URL: https://issues.jboss.org/browse/WFCORE-3948
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: Server
>            Reporter: Stuart Douglas
>            Priority: Major
>
> Attachments#ADDITIONAL_MODULES is attached to the top level DU, but modified by sub deployments in ManifestClassPathProcessor#createAdditionalModule without any sort of synchronisation. This can result in ConcurrentModificationException when the list is read/written to by other sub deployments at the same time.



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