Can a class in one WAR be referenced in web.xml of another WAR in the same EAR, in Wildfly 10?

Question

I have an ear with 2 .war files.

In war #1, under WEB-INF/classes/com/my there is a BatchTriggerBuildServlet.class

In war #2 i have the following in its web.xml (in its WEB-INF) (a reference to a class in war #1):

<web-app id="WebApp">
    <!-- other stuff -->
    <servlet>
        <servlet-name>BatchTriggerBuildServlet</servlet-name>
        <display-name>BatchTriggerBuildServlet</display-name>
        <servlet-class>com.my.BatchTriggerBuildServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>BatchTriggerBuildServlet</servlet-name>
        <url-pattern>/BatchTriggerBuildServlet</url-pattern>
    </servlet-mapping>
    <!-- other stuff -->
</web-app>

This is deployed in Wildfly 10. I also have a jboss-deployment-structure.xml in the META-INF folder of the containing .ear containing the following:

<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure>
        <!-- Make sub deployments NOT isolated by default, so they can see each others classes without a Class-Path entry -->
    <ear-subdeployments-isolated>false</ear-subdeployments-isolated>
</jboss-deployment-structure>

Is this legitimate? Because I'm getting a ClassNotFoundException for the above class when i try to deploy the ear, along with the message that it

"Failed to start service ... from [Module "<my ear name>.<my war #2 name>:main" from Service Module Loader]"

Is there a way to get this to work? thanks in advance.

Answer 1

ear-subdeployments-isolated does not apply to web modules, which are always isolated from each other. See Class Loading in WildFly.

Try moving the classes and their dependencies into a jar in the EAR/lib directory.