jaikiran pai [
http://community.jboss.org/people/jaikiran] created the discussion
"When is a bean moved to STARTED state?"
To view the discussion, visit:
http://community.jboss.org/message/534716#534716
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This question relates to a thread in JBoss AS forum where a user is running into error
trying to setup a dependency between a web application and an EJB
http://community.jboss.org/message/534413#534413
http://community.jboss.org/message/534413#534413
Here's a brief overview:
1) A web app adds a < depends> in its jboss-web.xml to mark a dependency on a EJB
container (which is a MC bean). The web app internally looks up the bean from JNDI and
hence this dependency.
2) The EJB container (MC bean) has a "start()" lifecycle callback method (among
other similar lifecycle callbacks).
3) In its start(), the EJB container *first* deploys some other MC beans and *then* binds
the EJB proxies to JNDI.
When EJB container deploys some other MC beans in step#3, it results in MC resolving
dependencies of other unrelated beans (known issue). Incidentally, while doing so, MC
considers that the EJB container MC bean has been started even though the start()
lifecycle method hasn't yet finished. MC then goes on to push the web-app to its next
state considering the dependency has been fulfilled (which hasn't yet been fulfilled
because the JNDI bindings in step#3 are not yet done). This results in the web-app running
into NameNotFoundExceptions.
Does MC set the state to START even before the start() lifecycle successfully completes?
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