Hello,
In a JBoss 3.2.4 server, I have deployed several enterprise javabeans (each as a
separate .jar, not in an .ear bundle). These beans are completely self-contained, as
they include all their needed dependencies inside the jar files (and have a reference
to them in the Class-Path entry in their MANIFEST.MF).
The problem shows when I want these beans to be scoped, this is, to have their own
classloader inside JBoss and not use the unified classloader so that each bean does
not see the others' classes, something very important for my software architecture.
For this, I set in the jboss.xml file of each of my ejb .jar files the following:
| <loader-repository>some.dot.com:loader=[some unique name]</loader-repository>
|
And in the jboss-service.xml file I enable CallByValue for the EJB Deployer.
...and with this I get the results I expected. The problem is, I need some of my ejbs
to return to the web tier classes of which this web tier only has an interface (not
the real implementations, which may vary). This means that, when the web tier receives
the data, it should ask JBoss for the concrete implementation of the class via Remote
Class Loading. For this, I have set in jboss-service.xml:
| <mbean code="org.jboss.web.WebService"
| name="jboss:service=WebService">
| <attribute name="Port">8083</attribute>
| <attribute name="DownloadServerClasses">true</attribute>
| <attribute name="Host">${jboss.bind.address}</attribute>
| <attribute name="BindAddress">${jboss.bind.address}</attribute>
| </mbean>
|
Which made remote classloading work perfectly before I scoped my ejbs, and which now
simply makes JBoss return a ClassNotFoundException when tomcat asks for the
implementation class.
I supose this means that the remote classloader cannot access the ejbs' concrete
classloaders now they're not unified but... Can this behaviour be changed? Can I
configure it some way so that I can do remote classloading with scoped beans?
Thanks.
Cruinne.
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