*
     * @param session the {@link Session}, must not be {@code null}
     * @param node the {@link Node} to flatten, must not be {@code null}
     * @param scope an optional {@link PathScope} to filter out dependencies
     * @return the flattened list of node
     * @throws DependencyResolverException
     */
    List<Node> flatten(@Nonnull Session session, @Nonnull Node node, @Nullable PathScope scope)

     *
     * @param values The array.
     * @return The simplified array.
     */
    protected static String[] simplifyArray(final String[] values) {
        return stream(values).get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

    /**
     * Returns the parameter value array.
     *
     * @param request The request.
     * @param param The parameter.

     * @throws FessSystemException if the input string contains invalid tag patterns
     */
    public static PrunedTag[] parse(final String value) {
        return split(value, ",").get(stream -> stream.filter(StringUtil::isNotBlank).map(v -> {
            final Pattern pattern = Pattern.compile("(\\w+)(\\[[^\\]]+\\])?(\\.[\\w\\-]+)?(#[\\w\\-]+)?");
            final Matcher matcher = pattern.matcher(v.trim());

     * and orders results by creation time in descending order.
     *
     * @param cb the condition bean for building the database query
     * @param crawlingInfoPager the pager containing filter criteria
     */
    protected void setupListCondition(final CrawlingInfoCB cb, final CrawlingInfoPager crawlingInfoPager) {
        if (crawlingInfoPager.id != null) {

import org.codelibs.fess.opensearch.config.cbean.cq.CrawlingInfoParamCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsCrawlingInfoParamCQ;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.HistogramAggregationBuilder;

 * relevant methods below.
 *
 * <ul>
 *   <li>This class is serializable; {@code java.util.Optional} is not.
 *   <li>{@code java.util.Optional} has the additional methods {@code ifPresent}, {@code filter},
 *       {@code flatMap}, and {@code orElseThrow}.
 *   <li>{@code java.util} offers the primitive-specialized versions {@code OptionalInt}, {@code

            int key = getNonGoldenRandomKey();
            // We can't check that the key is mightContain() == false before the
            // put() because the key could have already been generated *or* the
            // bloom filter might say true even when it's not there (false
            // positive).
            bloomFilter.put(key);
            // False negative should *never* happen.
            assertThat(bloomFilter.mightContain(key)).isTrue();

        }
    }

    private
    fun assertLeftoverFilesCleanedUpEventually(vararg leftoverFiles: String) {
        leftoverFiles.forEach {
            assertTrue(projectDir.resolve(it).walk().filter { it.isFile }.toList().isEmpty())
        }
    }

    @Test
    fun `fail build if leftover file found and test passes`() {
        val result = run(":successful-test-with-leftover:test").buildAndFail()

import org.apache.maven.artifact.handler.ArtifactHandler;
import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.resolver.filter.ArtifactFilter;
import org.apache.maven.artifact.versioning.ArtifactVersion;
import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
import org.apache.maven.artifact.versioning.OverConstrainedVersionException;

        return null;
    }

    public static XmlNode convert(org.apache.maven.api.plugin.descriptor.MojoDescriptor mojoDescriptor) {
        List<XmlNode> children = mojoDescriptor.getParameters().stream()
                .filter(p -> p.getDefaultValue() != null || p.getExpression() != null)
                .map(p -> XmlNode.newInstance(
                        p.getName(),
                        p.getExpression(),