Nullpointer exception on AbstractSessionBeanStore.getLockStore from within Activiti CDI --------------------------------------------------------------------------------------- Key: WFLY-3386 URL: https://issues.jboss.org/browse/WFLY-3386 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: CDI / Weld Affects Versions: 8.0.0.Final Environment: CentOS, Mac (Mountain Lion). Reporter: Andries Ehlers Assignee: Martin Kouba Background: The actual exception seems to be very close the one in issue: WFLY-3001 but we are not using JSF at all, but Activiti CDI. Not sure if this is a Wildfly or Activiti issue - it could very well be that there is a bug in Activiti with how it manages the CDI scopes. Unfortunately we're at a loss and seeing that the nullpointer is thrown from within a weld AbstractSessionBeanStore, I decided to post it here. Please advise. Error: We use Activiti CDI within Wildfly 8.0.0.Final. We randomly encounter an issue (sometimes immediately after a redeploy, other times after a few hours of inactivity on the server) the following issue. When Activiti attempts to retrieve the ContextBeanInstance from its ConversationScopedAssociationProxy, a NullPointer exception is thrown while attempting to retrieve the lock store within Weld (see below). ----------------------------- 2014-05-21 10:05:34,430 INFO [stdout] (default task-12) java.lang.NullPointerException: null 2014-05-21 10:05:34,430 INFO [stdout] (default task-12) at org.jboss.weld.context.beanstore.http.AbstractSessionBeanStore.getLockStore(AbstractSessionBeanStore.java:113) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,430 INFO [stdout] (default task-12) at org.jboss.weld.context.beanstore.AttributeBeanStore.lock(AttributeBeanStore.java:210) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,430 INFO [stdout] (default task-12) at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:90) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,431 INFO [stdout] (default task-12) at org.jboss.weld.context.PassivatingContextWrapper$AbstractPassivatingContextWrapper.get(PassivatingContextWrapper.java:76) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,431 INFO [stdout] (default task-12) at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:98) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,431 INFO [stdout] (default task-12) at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:78) ~[weld-core-impl-2.1.2.Final.jar!/:2014-01-09 09:23] 2014-05-21 10:05:34,431 INFO [stdout] (default task-12) at org.activiti.cdi.impl.context.DefaultContextAssociationManager$ConversationScopedAssociation$Proxy$_$$_WeldClientProxy.getTask(Unknown Source) ~[activiti-cdi-5.15.jar:na] 2014-05-21 10:05:34,431 INFO [stdout] (default task-12) at org.activiti.cdi.impl.context.DefaultContextAssociationManager.getTask(DefaultContextAssociationManager.java:237) ~[activiti-cdi-5.15.jar:na] 2014-05-21 10:05:34,432 INFO [stdout] (default task-12) at org.activiti.cdi.BusinessProcess.startTask(BusinessProcess.java:332) ~[activiti-cdi-5.15.jar:na]