<resource>
                  <directory>${project.build.outputDirectory}</directory>
                </resource>
                <resource>
                  <directory>${project.build.testOutputDirectory}</directory>
                  <includes>
                    <include>META-INF/sisu/**</include>
                  </includes>
                </resource>
              </resources>

     * where resource {@code targetPath} elements were always interpreted as relative to the output directory
     * ({@code project.build.outputDirectory} or {@code project.build.testOutputDirectory}),
     * not the project base directory. Maven 3 plugins (like maven-resources-plugin) expect to receive
     * the relative path and perform the resolution themselves.
     * </p>
     * <p>

     * are resolved relative to the appropriate output directory ({@code project.build.outputDirectory}
     * or {@code project.build.testOutputDirectory}), <strong>not</strong> the project base directory.
     * </p>
     * <p>
     * In Maven 3, when a resource configuration specifies:
     * </p>
     * <pre>{@code
     * <resource>

            The default value is {@code target/classes}.
          </description>
          <type>String</type>
        </field>
        <field>
          <name>testOutputDirectory</name>
          <version>4.0.0+</version>
          <description>
            The directory where compiled test classes are placed.
            The default value is {@code target/test-classes}.