[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-3999) Race condition in component initialization
Stuart Douglas (JIRA)
jira-events at lists.jboss.org
Mon Mar 9 02:16:22 EDT 2009
Race condition in component initialization
Issue Type: Bug
Affects Versions: 2.1.1.GA
Reporter: Stuart Douglas
When starting up application (or session) scoped component that do not have an @Startup annotation it is possible to get a race condition where two instances of the component are instantiated, as no locking is present in component initialization. I ran into this when my multi-threaded reporting process was the first component to hit the cache and jboss cache provider got instantiated twice:
`16:54:48,717 INFO [JbossCacheProvider] Starting JBoss Treecache 1.x
16:54:48,717 INFO [JbossCacheProvider] Starting JBoss Treecache 1.x`
In this case it is easy to work around, by simply adding startup="true" to the application scoped component. It is also possible to make calls on a component before the create method is called.
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