private
fun scriptsCacheDirsUnder(cacheDir: File) =
    scriptCacheDirNames
        .map { File(cacheDir, it) }
        .filter { it.isDirectory }


/**
 * Clean up cache files for older versions that aren't multi-process safe.
 */
fun FileSystemOperations.removeDodgyCacheFiles(dir: Directory) {

                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .toArray(n -> new String[n]));
                    final String[] labels = split(getValue(list, 3), ",")
                            .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
import org.apache.maven.artifact.resolver.filter.ExclusionSetFilter;
import org.apache.maven.extension.internal.CoreExports;

/**
 */
@Named
@Singleton
@Deprecated

  @Override
  NavigableSet<Integer> createUnfiltered(Iterable<Integer> contents) {
    return Sets.newTreeSet(contents);
  }

  @Override
  NavigableSet<Integer> filter(
      NavigableSet<Integer> elements, Predicate<? super Integer> predicate) {
    return Sets.filter(elements, predicate);
  }

  @Override
  Set<Integer> createUnfiltered(Iterable<Integer> contents) {
    return newHashSet(contents);
  }

  @Override
  Set<Integer> filter(Set<Integer> elements, Predicate<? super Integer> predicate) {
    return Sets.filter(elements, predicate);
  }

    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.
     *

    }

    /**
     * Adds a tag to filter by.
     * @param tag The tag.
     */
    public void addTag(final String tag) {
        tags.add(tag);
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     */
    public void addRole(final String role) {
        roles.add(role);
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.

            if (prPage.size < PAGE_SIZE) {
                break
            }
        }
        return prs
            .filter { it.milestone?.title?.startsWith(milestone.get()) == true }
            // Filter out the ghost user that replaces deleted users
            .filter { it.user.login != "ghost" }
            .map { it.user.login }
            .toSet()
            .map { getUserInfo(it) }
            .toSet()

            subProjectToClassTimes
                .entries
                .filter { "UNKNOWN" != it.key }
                .filter { model.subprojects.getSubprojectByName(it.key) != null }
                .map {
                    SubprojectTestClassTime(
                        model.subprojects.getSubprojectByName(it.key)!!,
                        it.value.filter { tct ->
                            tct.sourceSet != "test"

    }

    public AndArtifactFilter(List<ArtifactFilter> filters) {
        this.filters = new LinkedHashSet<>(filters);
    }

    @Override
    public boolean include(Artifact artifact) {
        boolean include = true;
        for (Iterator<ArtifactFilter> i = filters.iterator(); i.hasNext() && include; ) {
            ArtifactFilter filter = i.next();
            if (!filter.include(artifact)) {