[weld-issues] [JBoss JIRA] (WELD-1067) Thread safety issue in BeansClosure

[Magesh Bojan (JIRA)]

Magesh Bojan created WELD-1067:
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             Summary: Thread safety issue in BeansClosure
                 Key: WELD-1067
                 URL: https://issues.jboss.org/browse/WELD-1067
             Project: Weld
          Issue Type: Bug
    Affects Versions: 1.1.4.Final
         Environment: AS 7.1.0.CR1b
            Reporter: Magesh Bojan


The getClosure() method does not synchronize on get. This leads to multiple Weld deployments on AS7 calling the get method, all at once and leads to the following error:

java.lang.NullPointerException
        at org.jboss.weld.manager.BeanManagerImpl.getMostSpecializedBean(BeanManagerImpl.java:931)
        at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:605)
        at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:228)
        at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:207)
        at org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:75)
        at org.jboss.weld.bootstrap.events.AbstractDefinitionContainerEvent.fire(AbstractDefinitionContainerEvent.java:46)
        at org.jboss.weld.bootstrap.events.BeforeBeanDiscoveryImpl.fire(BeforeBeanDiscoveryImpl.java:46)
        at org.jboss.weld.bootstrap.WeldBootstrap.startInitialization(WeldBootstrap.java:322)
        at org.jboss.as.weld.WeldContainer.start(WeldContainer.java:80)
        at org.jboss.as.weld.services.WeldService.start(WeldService.java:89)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824)
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

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