Maven Project: no MANIFEST.MF is generated

Why does't generate IntelliJ the MANIFEST.MF file, when deploying to JBoss?

Parent pom.xml

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-ear-plugin</artifactId>
  <version>2.8</version>
  <configuration>
    <version>6</version>
    <generateApplicationXml>true</generateApplicationXml>
    <defaultLibBundleDir>lib/</defaultLibBundleDir>
    <skinnyWars>true</skinnyWars>
    <archive>
      <manifest>
        <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
      </manifest>
    </archive>
  </configuration>
</plugin>

EAR pom.xml

<build>
  <plugins>
    <plugin>
      <artifactId>maven-ear-plugin</artifactId>
      <configuration>
        <finalName>project</finalName>
        <modules>
          <webModule>
            <groupId>com.project</groupId>
            <artifactId>project-web</artifactId>
            <contextRoot>project</contextRoot>
            <bundleFileName>project-web.war</bundleFileName>
          </webModule>
          <ejbModule>
            <groupId>com.project</groupId>
            <artifactId>project-core</artifactId>
            <bundleFileName>project-core.jar</bundleFileName>
          </ejbModule>
        </modules>
      </configuration>
    </plugin>
  </plugins>
</build>

IntelliJ-Version: IU-132.839
OS: Windows 7 64-bit