[JBoss JIRA] (WFLY-3386) Nullpointer exception on AbstractSessionBeanStore.getLockStore from within Activiti CDI
1:53 p.m.
[
https://issues.jboss.org/browse/WFLY-3386?page=com.atlassian.jira.plugin....
]
Andries Ehlers edited comment on WFLY-3386 at 5/26/14 2:52 PM:
---------------------------------------------------------------
Stuart/Jozef,
Not sure if the following will help or just re-affirm your above conclusions. Regarding
the stacktrace: The next line in the stacktrace would be our would be our application
code executing the startTask() method on the Activiti BusinessProcess class.
Our application uses a JAX-RS resource as an entry-point, thus the only CDI scope present
at that time is a RequestScope. We don't explicitly start a conversation scope or
anything of the sorts.
Its a basic scenario of a JAX-RS resource with an injected Facade (stateless session
bean). The session bean calls startTask() on an injected BusinessProcess instance.
If you refer to the Javadoc of BusinessProcess.java (see link below), you'll notice
the following comment "...in the absence of a conversation, (non faces request, i.e.
when processing a JAX-RS, JAX-WS, JMS, remote EJB or plain Servlet requests), the {@link
BusinessProcess} bean associates with the current Request (see {@link RequestScoped
@RequestScoped})....."
This is our scenario.
Link:
http://svn.codehaus.org/activiti/activiti/trunk/modules/activiti-cdi/src/...
Hope this helps.
was (Author: andriese):
Stuart/Jozef,
Not sure if the following will help or just re-affirm your above conclusions. Regarding
the stacktrace: The next line in the stacktrace would be our would be our application
code executing the startTask() method on the Activiti BusinessProcess class.
Our application uses a JAX-RS as an entry-point, thus the only CDI scope present at that
time is a RequestScope. We don't explicitly start a conversation scope or anything of
the sorts.
Its a basic scenario of a JAX-RS resource with an injected Facade (stateless session
bean). The session bean calls startTask() on an injected BusinessProcess instance.
If you refer to the Javadoc of BusinessProcess.java (see link below), you'll notice
the following comment "...in the absence of a conversation, (non faces request, i.e.
when processing a JAX-RS, JAX-WS, JMS, remote EJB or plain Servlet requests), the {@link
BusinessProcess} bean associates with the current Request (see {@link RequestScoped
@RequestScoped})....."
This is our scenario.
Link:
http://svn.codehaus.org/activiti/activiti/trunk/modules/activiti-cdi/src/...
Hope this helps.
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: Jozef Hartinger
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]
--
This message was sent by Atlassian JIRA
(v6.2.3#6260)
4447
days inactive
4447
days old
0 comments
1 participants
participants (1)
-
Andries Ehlers (JIRA)