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https://issues.jboss.org/browse/WFLY-3386?page=com.atlassian.jira.plugin....
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Ochieng Marembo edited comment on WFLY-3386 at 3/28/15 4:58 PM:
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These thread may be old, but i was getting the exact same scenario, and then figured out
why.
I had a sessioninitialization listener, which was failing, on
{code:java}
HttpSessionListener.sessionCreated(HttpSessionEvent)
{code}
so when AbstractSessionBeanStore.getLockStore tries to get hold of a new session, an
exception occurs, which seems to be ignored somewhere in the event call chain, and hence
getSession(true) effectively returns null.
The best solution for this is to ensure that the Exception that occurs during session
creation is propagated properly and should terminate with the initial cause.
was (Author: marembo2008):
These thread may be old, but i was getting the exact same scenario, and then figured out
why.
I had a sessioninitialization listener, which was failing, on
```HttpSessionListener.sessionCreated(HttpSessionEvent)```
so when AbstractSessionBeanStore.getLockStore tries to get hold of a new session, an
exception occurs, which seems to be ignored somewhere in the event call chain, and hence
getSession(true) effectively returns null.
The best solution for this is to ensure that the Exception that occurs during session
creation is propagated properly and should terminate with the initial cause.
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
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]
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