WAR class access another class from other WAR

Question

I a Jboss Wildfly 8.2 instance I have a webapp ROOT.war and another OTHER.war and I need that the class OtherXYZ.class that is inside OTHER.war be able to access RootXYZ.class. I've read somewhere that this might be possible using EAR but I don't know how.

Here there is the schema I need to implement

                     ClassesVisibleToAllWars.jar
                     /          |              \    
            (access)/           |(access)       \(access)
                   /            |                \
            Root.war         Other1.war         Other2.war
           /                    |                    |
        R.class              O1.class              O2.class  

• I CANNOT create/use a Global Module to put inside wildfly/modules directory. I'll only have access to standalone/deployments/* directory
• all classes from ClassesVisibleToAllWars.jar must be visible to R.class, O1.class and O2.class, for example
• new other .war files might eventually be deployed and this behavior must persist

Question

Wheare should I put ClassesVisibleToAllWars.jar in order to achieve that schema?

Answer 1

You will not be able to make a reference to a class in one war from another.

If you deploy as an ear, you could pull RootXYZ.class out of ROOT.war and then place it in a jar that would be on the classpaths of both wars (usually in a /lib directory in the ear). I'm not sure about the exact steps required to set this up in Wildfly, but its' usually a setting in META-INF/application.xml, something like:

<library-directory>/lib</library-directory>

Since in the above you're already pulling common classes into a jar file, I'd probably just include this jar in each war file as part of my build process.