tests/test-webapps/test-servlet-spec/test-spec-webapp/src/main/assembly/web-bundle.xml

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
  <id>webbundle</id>
  <formats>
    <format>jar</format>
  </formats>
  <includeBaseDirectory>false</includeBaseDirectory>
  <fileSets>
    <fileSet>
      <directory>${basedir}/${project.build.directory}/${project.build.finalName}/</directory>
      <outputDirectory></outputDirectory>
      <includes>
        <include>**/*.*</include>
      </includes>
    </fileSet>
  </fileSets>
</assembly>