import org.codehaus.plexus.classworlds.realm.ClassRealm;

import static java.util.function.Function.identity;
import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**
 * Provides information about artifacts (identified by groupId:artifactId string key) and classpath elements exported by
 * Maven core itself and loaded Maven core extensions.
 *
 * @since 3.3.0
 */

        return map != null ? Collections.unmodifiableMap(map) : Collections.emptyMap();
    }

    private static Map<String, String> toMap(Properties properties) {
        if (properties != null && !properties.isEmpty()) {
            return properties.entrySet().stream()
                    .collect(Collectors.toMap(e -> String.valueOf(e.getKey()), e -> String.valueOf(e.getValue())));

        } else {
            return null;
        }

import static org.apache.maven.cling.invoker.Utils.prefix;
import static org.apache.maven.cling.invoker.Utils.stripLeadingAndTrailingQuotes;
import static org.apache.maven.cling.invoker.Utils.toMap;

public abstract class BaseParser<O extends Options, R extends InvokerRequest<O>> implements Parser<R> {

    @SuppressWarnings("VisibilityModifier")
    public static class LocalContext {

                                    return request.getSystemProperties().entrySet().stream()
                                            .collect(Collectors.toMap(
                                                    e -> e.getKey().toString(),
                                                    e -> e.getValue().toString()));

        this.locations = location.getLocations().isEmpty()
                ? null
                : location.getLocations().entrySet().stream()
                        .collect(Collectors.toMap(
                                e -> e.getKey(),
                                e -> e.getValue() == location ? this : new InputLocation(e.getValue())));

        this.types = nonNull(providers, "providers").stream()
                .flatMap(p -> p.provides().stream())
                .collect(Collectors.toMap(Type::id, identity()));
        this.languageRegistry = nonNull(languageRegistry, "languageRegistry");
        this.usedTypes = new ConcurrentHashMap<>();
        this.manager = nonNull(manager, "artifactHandlerManager");
    }

                                        + ":" + goal)))));
        return goals.entrySet().stream()
                .collect(Collectors.toMap(Map.Entry::getKey, e -> new LifecyclePhase(String.join(",", e.getValue()))));
    }

    public Map<String, LifecyclePhase> getDefaultLifecyclePhases() {
        return defaultPhases;
    }

    @Deprecated

                        .filter(Objects::nonNull)
                        .map(Node::getDependency)
                        .filter(Objects::nonNull)
                        .collect(Collectors.toMap(d -> d.getGroupId() + ":" + d.getArtifactId(), d -> d)));
            }
        };
    }

    @Override
    public PluginExecution getModel() {
        return delegate.getPlugin().getExecutions().stream()

		if intOld.start != intNew.start || intOld.end != intNew.end {
			nidx++
			continue
		}
		h[nidx] += v[oidx]
		oidx++
		nidx++
	}
}

// toMap returns the map to a map[string]uint64.
func (h *sizeHistogram) toMap() map[string]uint64 {
	res := make(map[string]uint64, dataUsageBucketLen)
	var splCount uint64
	for i, count := range h {
		szInt := ObjectsHistogramIntervals[i]
		switch {

        // Lifecycles cannot be cached as extensions might add custom lifecycles later in the execution.
        try {
            return registry != null
                    ? registry.stream().collect(Collectors.toMap(lf -> lf.id(), lf -> new Lifecycle(registry, lf)))
                    : Map.of();
        } catch (LookupException e) {
            throw new IllegalStateException("Unable to lookup lifecycles from the plexus container", e);