Magesh Bojan created WELD-1067: ---------------------------------- 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) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira