Can't get EAR package structure correctly with Maven - maven

Question

I got a simple maven project and yet frustratingly fail for hours to get it right. The project contains 1 parent module, and 2 submodules (one for ear-packaging, the other for an ejb). Building works successfully, but the ear-packing just doesn't work as expected:
<project>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>at.betrieb.projekt</groupId>
<artifactId>extended</artifactId>
<version>1.0</version>
</parent>
<artifactId>extended-ear</artifactId>
<packaging>ear</packaging>
<dependencies>
<dependency>
<groupId>at.betrieb.projekt</groupId>
<artifactId>extended-ejb</artifactId>
<version>1.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.7</version>
<configuration>
<version>6</version>
<generateApplicationXml>false</generateApplicationXml>
<defaultLibBundleDir>lib</defaultLibBundleDir>
<jarModule>
<groupId>at.betrieb.projekt</groupId>
<artifactId>extended-ejb</artifactId>
<bundleDir>/</bundleDir>
</jarModule>
</configuration>
</plugin>
</plugins>
</build>
</project>
Now when I look into the packaged folder I see this structure:
|-lib
extended-ejb-1.0.jar
activation-1.1.jar
javaee-api-7.0.jar
javax.mail-1.5.0.jar
|-META-INF
application.xml
What I expected however was this structure:
|-extended-ejb-1.0.jar
|-lib
activation-1.1.jar
javaee-api-7.0.jar
javax.mail-1.5.0.jar
|-META-INF
application.xml
So basically I wanted the ejb outside of the other libraries. These other 3 libraries come from the ejb-module which requires the javaee-api dependency for annotations. Unfortunately it also collects transitive the javax.mail.jar, activation.jar.
Now I really don't know why the structure just doesn't work as expected, by all means I tried to follow this guide step by step.

Answer 1

Ok, after I checked out a project from various maven archetypes I found the error... the minimal error... it's always a minimal error costing huge amounts of time...
In the dependencies section of the ear file, where I define my ejb as dependency, just add this:
<type>ejb</type>
so it's:
<dependency>
<groupId>at.betrieb.projekt</groupId>
<artifactId>extended-ejb</artifactId>
<version>1.0</version>
<type>ejb</type>
</dependency>
Afterwards it works correctly. Obviously it is wrong on the IBM page and on many other pages. Besides I found out the following section is also outdated, and can be completely removed from the ear-plugin section:
<jarModule>
<groupId>at.betrieb.projekt</groupId>
<artifactId>extended-ejb</artifactId>
<bundleDir>/</bundleDir>
</jarModule>