Hi,
I have 3 ears that define modules A, B, C. These modules are dependent in the sense
that for example, module B is using interfaces from module A to get compiled (and even
deployed without having A being deployed).
I would like to deploy/redeploy these modules at any time. So, to achieve my goal, I
separated interfaces from bean in each module and put the interfaces to solve the
dependency issues.
So schematically, the 3 ears looks like:
A :
A.jar // only beans
lib/A-client.jar // only interfaces from A
META-INF - application.xml
// defines lib/A-client.jar as java module
// defines A.jar as ejb module
in A.jar, the ejb-jar.xml file contains the tag
<ejb-client-jar>lib/A-client.jar</ejb-client-jar> and the Class-Path from its
MANIFEST.MF contains lib/A-client.jar
B: //depends on A and C
B.jar // an ejb module
lib/A-client.jar // only interfaces from A
lib/another-jar.jar // containing no beans
lib/C-client.jar // only interfaces from C
META-INF - application.xml
In B.jar, the ejb-jar.xml file contains tags <ejb-client-jar> that list all the jar
from the lib dir, and the Class-Path from its MANIFEST.MF contains these libs.
C : // depends on A
C.jar // only beans
lib/C-client.jar // only interfaces from C
lib/another-jar.jar // same that the one from B
lib/A-client.jar // only interfaces from A
META-INF - application.xml
In C.jar, the deployment descriptor contains tags <ejb-client-jar> that list all the
jars from the lib dir and the Class-Path entry from its MANIFEST.MF also contains
these libs.
All modules deploy correctly and the application runs correctly until I redeploy the
modules... Once they are redeployed I got an IllegalAccessError on some beans (in fact
it seems that each inner class are hitten by this error, I don't know for sure that
there is a relation).
After having a look at the documentation, it seems that the error occurs because the
same classe is loaded in different class loaders. I saw that to be able to use the
same classe in different ear, we have to define tag <loader-repository> in the
jboss-app.xml (near the application.xml). That what I did for each module: adding
| <loader-repository>
| kiala:core=LoaderRepository
| <loader-repository-config>
| java2ParentDelegation=false
| </loader-repository-config>
| </loader-repository>
|
The application deploys very well, but I got a ClassCastException at runtime...
Any help would be welcome.
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http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3834067#3834067
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