Maven – How to refer shared library in EAR containing EJB jar in it built using maven as separate artifacts

deploymentearmavenshared-librariesweblogic

I am using maven to build applications.

I have deployed a WAR file containing many common jars as shared library in application server.

I have an artifact (say A-EJB) of packaging type EJB. I have built the ejb jar file.

I have an another artifact (say A-EAR) of packaging type EAR.

I have added A-EJB dependency in pom file of A-EAR. I could build the EAR file and for adding shared library reference, I have added library reference in weblogic-application.xml of EAR.

In my final EAR file, I could see A-EJB.jar file, other dependency jar files of A-EAR artifact.

EAR structure:

————–APP-INF\lib\some jars
————–META-INF\application.xml, MANIFEST.MF, weblogic-application.xml
————–A-ejb.jar

The class files of A-EJB.jar requires reference of common jars in shared library.

Ideally, I am expecting the deployment should happen successfully but this is not happening. Even though I have shared library reference in EAR file, the deployment fails due to classNotFoundException while preparing the EJB module during deployment.

The class files of A-EJB.jar searches for required jar files for reference but they are available in shared library and shared library is not used even EAR file has the reference to it.

Exception:

weblogic.application.ModuleException: Exception preparing module: EJBModule
[EJB:011023]An error occurred while reading the deployment descriptor. The error was:
…………………………………………………..

Caused By: java.lang.ClassNotFoundException:
……………………………………………………

So, this means even though EAR had a shared library reference, the ejb.jar present inside the EAR did not have reference to shared library. Is this true ?

Has anyone faced this exception and scenario. Kindly help me about resolving this issue.

Best Answer

I suggest you to use the ear plugin with this settings.. might help..

<plugin>
    <artifactId>maven-ear-plugin</artifactId>
    <configuration>
        <modules>
            <ejbModule>
                <groupId>ur ejb</groupId>
                <artifactId>ur ejb Id</artifactId>
            </ejbModule>
            <jarModule>
                <groupId>......</groupId>
                <artifactId>......</artifactId>
            </jarModule>
            ....
            ....
    Other jar modules to be included other than the one included in dependency tag
            ....
            ....
        </modules>
        <archive>
            <manifest>
                <addClasspath>false</addClasspath>
            </manifest>
        </archive>
        <displayName>...name...</displayName>
        <description>........desc.......</description>
    </configuration>
</plugin>
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