The MLet class should not need the MBeanServer created before it so
I think simply changing Main.java
from:
// Create MBeanServer
final MBeanServer server = MBeanServerFactory.createMBeanServer();
...
// Create MLet
MLet mlet = new MLet(urls);
server.registerMBean(mlet, new ObjectName(server.getDefaultDomain(),
"service", "MLet"));
// Set MLet as classloader for this app
Thread.currentThread().setContextClassLoader(mlet);
to this:
// Create MLet
MLet mlet = new MLet(urls);
// Set MLet as classloader for this app
Thread.currentThread().setContextClassLoader(mlet);
// Create MBeanServer
final MBeanServer server = MBeanServerFactory.createMBeanServer();
server.registerMBean(mlet, new ObjectName(server.getDefaultDomain(),
"service", "MLet"));
will result in the MBeanServer implementation being loaded by the JBoss server
class loader. The com.sun.management.jmx.MBeanServerImpl class is using
its ClassLoader to locate classes rather the then context class loader:
/**
* Gets the class for the specified class name
*/
private Class findClass(String className)
throws ClassNotFoundException {
Class theClass = null;
ClassLoader myLoader = this.getClass().getClassLoader();
if (myLoader != null) {
theClass = myLoader.loadClass(className);
} else {
theClass = Class.forName(className);
}
return theClass;
}
----- Original Message -----
From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, April 11, 2001 7:30 PM
Subject: RE: [JBoss-dev] Nested JMX Service Groups...??!
> Oh-oh,
>
> Classloaders. So I happely planned my night to add those two lines and go
> out with friends but then I realized how deep the rabbit hole goes.
>
> I was stunned to realize that:
>
> server.isInstanceOf(mbeanName,"org.jboss.util.Service") always returns
> false and here is why.
>
> MBeanServerImpl implementation of this method obviously has to load our
> service class to do type check. It uses classloader that loaded
> MBeanServerImpl which in our case is AppClassLoader. AppClassLoader in
> turn can't "see" any of our jboss classes since they were loaded with
> Mlet.
>
> I can't see no way to tell to MBeanServer to use other classloader nor did
> JMX engineers hooked wires for CCLs. So as soon ClassNotFoundException is
> caught (inside MbeanServer.isInstanceOf) false is returnd :(
>
> Feedback?
>
> vlada
>
>
> On Wed, 11 Apr 2001, marc fleury wrote:
>
> > Bla enough talk, add the f*cking line already
> >
> > ||I still don't see anything wrong with type check for
> > ||org.jboss.util.Service.
> > ||Vladimir
> >
> > "code with your balls on the keyboard"
> >
> > _______________________________________________
> > Jboss-development mailing list
> > [EMAIL PROTECTED]
> > http://lists.sourceforge.net/lists/listinfo/jboss-development
> >
>
>
> _______________________________________________
> Jboss-development mailing list
> [EMAIL PROTECTED]
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>
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