WildFly already runs a shared EximeeBPMS process engine via its EximeeBPMS subsystem, so our application does not configure an engine itself - it only needs to declare itself as a process archive, and enable the Jakarta EE facilities it uses.

Declare the Process Archive

META-INF/processes.xml declares a process archive that is scanned for process definitions and deployed against the shared, default process engine:

<process-application
  xmlns="http://www.camunda.org/schema/1.0/ProcessApplication"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

  <process-archive name="pizza-order">
    <process-engine>default</process-engine>
    <properties>
      <property name="isDeleteUponUndeploy">true</property>
      <property name="isScanForProcessDefinitions">true</property>
    </properties>
  </process-archive>

</process-application>

Declare a Persistence Unit

META-INF/persistence.xml declares a JPA persistence unit backed by the ProcessEngine datasource that WildFly’s EximeeBPMS subsystem already provides under the JNDI name java:jboss/datasources/ProcessEngine:

<persistence version="2.0"
  xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="
        http://java.sun.com/xml/ns/persistence
        http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

  <persistence-unit name="primary">
    <jta-data-source>java:jboss/datasources/ProcessEngine</jta-data-source>
    <properties>
      <property name="hibernate.hbm2ddl.auto" value="create-drop" />
      <property name="hibernate.show_sql" value="true" />
    </properties>
  </persistence-unit>

</persistence>

Enable CDI and JSF

WEB-INF/beans.xml is an empty CDI marker file that enables CDI bean discovery for the WAR:

<!-- intentionally empty -->

WEB-INF/faces-config.xml enables the Faces Servlet:

<faces-config version="2.0" xmlns="http://java.sun.com/xml/ns/javaee"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
         http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd">

</faces-config>

Build and Deploy

Rebuild and redeploy the WAR file.