[seam-issues] [JBoss JIRA] Commented: (SEAMFACES-96) Disable Abstractlistener when JSF application is shutting down

[Brian Leathem (JIRA)]

    [ https://issues.jboss.org/browse/SEAMFACES-96?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588197#comment-12588197 ] 

Brian Leathem commented on SEAMFACES-96:
----------------------------------------

Dan in IRC:

if it's the shudown event, try to get the BeanManager (there is a method to safetly check) and if it's not there, then just skip it.

So rather than disabling the listener during the shutdown event, we'll just filter the the events bridged to the CDI event bus, excluding those that during the shutdown sequence, when the Bean Manager is not available.

> Disable Abstractlistener when JSF application is shutting down
> --------------------------------------------------------------
>
>                 Key: SEAMFACES-96
>                 URL: https://issues.jboss.org/browse/SEAMFACES-96
>             Project: Seam Faces
>          Issue Type: Bug
>          Components: Event Bridge
>    Affects Versions: 3.0.0.CR1
>         Environment: JBoss AS 6
>            Reporter: Shane Bryzak
>             Fix For: 3.0.0.Final
>
>
> An exception is thrown while undeploying an application:
> 13:56:03,145 SEVERE [javax.enterprise.resource.webcontainer.jsf.config] Unexpected exception when attempting to tear down the Mojarra runtime: org.jboss.seam.solder.beanManager.BeanManagerUnavailableException: Failed to locate BeanManager using any of these providers: org.jboss.seam.solder.beanManager.DefaultJndiBeanManagerProvider(11), org.jboss.seam.solder.beanManager.ServletContainerJndiBeanManagerProvider(10)
> 	at org.jboss.seam.solder.beanManager.BeanManagerLocator.getBeanManager(BeanManagerLocator.java:91) [:3.0.0.CR1]
> 	at org.jboss.seam.solder.beanManager.BeanManagerAware.getBeanManager(BeanManagerAware.java:56) [:3.0.0.CR1]
> 	at org.jboss.seam.faces.event.AbstractListener.getListeners(AbstractListener.java:25) [:3.0.0.CR1]
> 	at org.jboss.seam.faces.event.DelegatingSystemEventListener.getEventListeners(DelegatingSystemEventListener.java:38) [:3.0.0.CR1]
> 	at org.jboss.seam.faces.event.DelegatingSystemEventListener.processEvent(DelegatingSystemEventListener.java:26) [:3.0.0.CR1]
> 	at javax.faces.event.SystemEvent.processListener(SystemEvent.java:102) [:2.0.3-]
> [...]
> The offending line 25 in AbstractListener (extends BeanManagerAware) calls getBeanManager().  It seems that the BeanManager is not available during application shutdown.
> JSF publishes the event javax.faces.event.PreDestroyApplicationEvent
> So AbstractListener (or perhaps DelegatingSystemEventListener) could listen for this event, and disable itself to avoid throwing this error.

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