Generating the JBoss deployment descriptor file

To trigger the generation of the jboss-app.xml file you need to configure the 'jboss' element. For instance to target version 4 of JBoss with a 'guest' unauthenticated principal and a scoped classloader:

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-ear-plugin</artifactId>
        <version>3.4.0</version>
        <configuration>
           [...]
           <jboss>
             <version>4</version>
             <unauthenticated-principal>guest</unauthenticated-principal>
             <loader-repository>com.foo:loader=foo-application-1.0.ear</loader-repository>
           </jboss>
        </configuration>
      </plugin>
    </plugins>
  </build>