[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2143) Hotdeployed components can't be configured through components.xml

Joshua Partogi (JIRA) jira-events at lists.jboss.org
Sat Jan 5 06:01:43 EST 2008

    [ http://jira.jboss.com/jira/browse/JBSEAM-2143?page=comments#action_12393911 ] 
Joshua Partogi commented on JBSEAM-2143:

Does this mean that in the future release components that is configured through components.xml will be able to be hot deployed?

> Hotdeployed components can't be configured through components.xml
> -----------------------------------------------------------------
>                 Key: JBSEAM-2143
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2143
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.0.CR2
>            Reporter: Pete Muir
>         Assigned To: Pete Muir
>            Priority: Critical
>             Fix For: 2.0.2.GA
> he hot deployment scanner is isolated, using a URLClassloader that is not available once that method comes to a close. The only way to make this work would be to keep that classloader alive during the rest of the startup process. I can direct you to the line of code that you need to look at if you are curious about it.
> Check out lines 540 and 541 or org.jboss.seam.init.Initialiation. The scanForHotDeployableComponents uses the following logic to create a component scanner:
>             URL[] urls = { url };
>             classLoader = new URLClassLoader(urls, Thread.currentThread().getContextClassLoader());
>             paths = new File[] { directory };
> Once it processes the classes, that classloader is discarded and obviously, since it is a URLclassloader, the classes aren't going to be found later on. 

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