* <p><b>{@code Stream} equivalent:</b> {@link Stream#filter}.
   */
  public static <T extends @Nullable Object> Iterable<T> filter(
      Iterable<T> unfiltered, Predicate<? super T> retainIfTrue) {
    checkNotNull(unfiltered);
    checkNotNull(retainIfTrue);
    return new FluentIterable<T>() {
      @Override
      public Iterator<T> iterator() {
        return Iterators.filter(unfiltered.iterator(), retainIfTrue);
      }

				return
			}
		case "b":
			z.bucket, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "bucket")
				return
			}
		case "flt":
			z.filter, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "filter")
				return
			}
		case "id":
			z.id, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "id")
				return
			}
		case "err":

    }

    protected MavenOptions parseMavenAtFileOptions(Path atFile) {
        try (Stream<String> lines = Files.lines(atFile, StandardCharsets.UTF_8)) {
            List<String> args =
                    lines.filter(arg -> !arg.isEmpty() && !arg.startsWith("#")).toList();
            return parseArgs("atFile", args);
        } catch (ParseException e) {
            throw new IllegalArgumentException(

import org.apache.maven.api.Service;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Service for creating {@link PathMatcher} objects that can be used to filter files
 * based on include/exclude patterns. This service provides a clean API for plugins
 * to create path matchers without directly depending on implementation classes.
 * <p>

        if (crawlerContext.getMaxDepth() >= 0 && depth > crawlerContext.getMaxDepth()) {
            return;
        }

        // add url and filter
        final Set<String> urlSet = new HashSet<>();
        final List<UrlQueue<?>> childList = childUrlList.stream()
                .filter(d -> StringUtil.isNotBlank(d.getUrl()) && urlSet.add(d.getUrl()) && crawlerContext.urlFilter.match(d.getUrl()))
                .map(d -> {

        context.info("Maven Upgrade Tool");
        logUpgradeOptions(context);

        UpgradeResult overallResult = UpgradeResult.empty();

        // Filter and execute applicable strategies
        List<UpgradeStrategy> applicableStrategies = strategies.stream()
                .filter(strategy -> strategy.isApplicable(context))
                .toList();

        if (applicableStrategies.isEmpty()) {

                }
            }
        }
        if (!unresolvedSelectors.isEmpty()) {
            String requiredSelectors = unresolvedSelectors.stream()
                    .filter(pas -> !pas.activationSettings().optional())
                    .map(ProjectActivation.ProjectActivationSettings::selector)
                    .collect(Collectors.joining(", "));
            if (!requiredSelectors.isEmpty()) {

                .filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        body.virtualHosts = stream(entity.getVirtualHosts())
                .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().map(String::trim).collect(Collectors.joining("\n")));
        return body;
    }

						<configuration>
							<outputDirectory>${project.build.directory}/generated-packaging/deb/</outputDirectory>
							<filters>
								<filter>${project.basedir}/src/packaging/common/packaging.properties</filter>
								<filter>${project.basedir}/src/packaging/deb/packaging.properties</filter>
							</filters>
							<resources>
								<resource>
									<directory>src/packaging/common/</directory>

            }
            return new SpnegoCredential(username[0]);
        }).orElse(null);

    }

    /**
     * SPNEGO filter configuration implementation.
     *
     * This inner class provides configuration parameters for the SPNEGO filter,
     * mapping system properties to SPNEGO configuration values. It handles
     * various authentication settings including Kerberos configuration,