}

            if (build.getFilters() != null) {
                List<String> filters = new ArrayList<>();
                for (String filter : build.getFilters()) {
                    filters.add(alignToBaseDirectory(filter, basedir));
                }
                build.setFilters(filters);
            }

            build.setOutputDirectory(alignToBaseDirectory(build.getOutputDirectory(), basedir));

    /**
     * User property for version filters expression, a semicolon separated list of filters to apply. By default, no version
     * filter is applied (like in Maven 3).
     * <p>
     * Supported filters:
     * <ul>
     *     <li>"h" or "h(num)" - highest version or top list of highest ones filter</li>
     *     <li>"l" or "l(num)" - lowest version or bottom list of lowest ones filter</li>

        assertThat(pom.getValue("build/filters[2]").toString(), endsWith("child-c.properties"));
        assertThat(pom.getValue("build/filters[3]").toString(), endsWith("child-b.properties"));
        assertThat(pom.getValue("build/filters[4]").toString(), endsWith("child-d.properties"));
        assertThat(pom.getValue("build/filters[5]").toString(), endsWith("parent-c.properties"));

                    .resources(map(build.getResources(), r -> alignToBaseDirectory(r, basedir)))
                    .testResources(map(build.getTestResources(), r -> alignToBaseDirectory(r, basedir)))
                    .filters(map(build.getFilters(), s -> alignToBaseDirectory(s, basedir)))
                    .outputDirectory(alignToBaseDirectory(build.getOutputDirectory(), basedir))

    PathScope getPathScope();

    /**
     * Returns a filter for the types of path (class-path, module-path, …) accepted by the tool.
     * For example, if a Java tools accepts only class-path elements, then the filter should return
     * {@code true} for {@link JavaPathType#CLASSES} and {@code false} for {@link JavaPathType#MODULES}.
     * If no filter is explicitly set, then the default is a filter accepting everything.
     *

        }
    }

    /*
     * TODO: Whether duplicates should be removed looks like an option for the generated merger.
     */
    @Override
    protected void mergeBuildBase_Filters(
            BuildBase.Builder builder,
            BuildBase target,
            BuildBase source,
            boolean sourceDominant,
            Map<Object, Object> context) {

          </description>
          <type>String</type>
        </field>
        <field>
          <name>filters</name>
          <version>4.0.0+</version>
          <description>The list of filter properties files that are used when filtering is enabled.</description>
          <association>
            <type>String</type>
            <multiplicity>*</multiplicity>

            if (Files.isDirectory(artifactPath)) {
                try (Stream<Path> paths = Files.list(artifactPath)) {
                    for (Path path : (Iterable<Path>) paths::iterator) {
                        Files.delete(path);
                    }
                }
                try {
                    Files.delete(artifactPath);
                    Files.delete(artifactPath.getParent());

     *
     * @param extensionDependencyFilter The dependency filter to apply to plugins, may be {@code null}.
     */
    public void setExtensionDependencyFilter(DependencyFilter extensionDependencyFilter) {
        this.extensionDependencyFilter = extensionDependencyFilter;
    }

    /**
     * Gets the dependency filter used to exclude shared extension artifacts from plugin realms.

 */
@Named("jdk-version")
@Singleton
public class JdkVersionProfileActivator implements ProfileActivator {

    private static final Pattern FILTER_1 = Pattern.compile("[^\\d._-]");
    private static final Pattern FILTER_2 = Pattern.compile("[._-]");
    private static final Pattern FILTER_3 = Pattern.compile("\\."); // used for split now

    @Override