[jboss-jira] [JBoss JIRA] Created: (JBAS-8394) Slow startup for lots of JSF applications

Tue Sep 7 15:29:52 EDT 2010

Slow startup for lots of JSF applications
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                 Key: JBAS-8394
                 URL: https://jira.jboss.org/browse/JBAS-8394
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: JSF
    Affects Versions: 6.0.0.M4
            Reporter: Stan Silvert
            Assignee: Stan Silvert
             Fix For: 6.0.0.Final

It looks like the JSF Deployer can cause slow startup if lots of different JSF applications are deployed.  In my testing, it adds about 3 seconds for each JSF deployment.  My tests are not conclusive, but I'm guessing that since JSF is now loaded by the WAR's classloader instead of Tomcat's classloader then the JSF classes have to be reloaded for each JSF app.  I suspect that this causes extra memory usage as well over the old way of doing it.

The solution is to allow all WARs that use the same JSF configuration to share the same classloader for those classes.  

I suspect that other deployers such as the Weld deployer and Seam deployer have the same issue.  This would be a problem for any deployer that adds jars to the deloyment classpath on the fly.

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