ProjectLock(MavenSession session, MojoDescriptor mojoDescriptor) {
            mojos.put(Thread.currentThread(), mojoDescriptor);
            boolean aggregator = mojoDescriptor.isAggregator();
            acquiredAggregatorLock = aggregator ? aggregatorLock.writeLock() : aggregatorLock.readLock();
            acquiredProjectLock = getProjectLock(session);
            if (!acquiredAggregatorLock.tryLock()) {

		cl.forwardTo(cm.UpdatedAt)
		merged.UpdatedAt = cm.UpdatedAt
	}

	for i := range cl.Bins {
		merged.Bins[i] = cl.Bins[i].add(cm.Bins[i])
	}

	return merged
}

// DailyAllTierStats is used to aggregate last day tier stats across MinIO servers
type DailyAllTierStats map[string]lastDayTierStats

func (l DailyAllTierStats) merge(m DailyAllTierStats) {
	for tier, st := range m {
		l[tier] = l[tier].merge(st)
	}
}

        // Distinct the projects to avoid duplicates.  Duplicates are possible in multi-module projects.
        //
        // Given a scenario where there is an aggregate POM with modules A, B, C, D, and E and project E depends on
        // A, B, C, and D. If the aggregate POM is being filtered for non-transitive and downstream dependencies where

     */
    enum RealmType {
        /**
         * The class realm for the public API of the Maven core.
         */
        Core,

        /**
         * A class realm for a project to aggregates its build extensions.
         */
        Project,

        /**
         * A class realm for a build extension.
         */
        Extension,

        /**
         * A class realm for a plugin.

 * called the <dfn>aggregator project</dfn> lists one or more <dfn>sub-projects</dfn>
 * which are relative pointers on the file system to other projects. This is done using
 * the {@code /project/subprojects/subproject} elements of the POM in the aggregator project.
 * Note that the aggregator project is required to have a {@code pom} packaging.</p>
 *

        this.messageBuilderFactory = messageBuilderFactory;
    }

    public static List<MavenProject> getProjects(MavenProject project, MavenSession session, boolean aggregator) {
        if (aggregator && project.getCollectedProjects() != null) {
            // get the unsorted list of wanted projects
            Set<MavenProject> projectAndSubmodules = new HashSet<>(project.getCollectedProjects());

 * under the License.
 */
package org.apache.maven;

import org.apache.maven.plugin.MojoFailureException;

/**
 * Exception which occurs when a normal (i.e. non-aggregator) mojo fails to
 * execute. In this case, the mojo failed while executing against a particular
 * project instance, so we can wrap the {@link MojoFailureException} with context

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.RejectedExecutionException;
import org.jspecify.annotations.Nullable;

/** Aggregate future that computes its value by calling a callable. */
@GwtCompatible
final class CombinedFuture<V extends @Nullable Object>
    extends AggregateFuture<@Nullable Object, V> {

	if !s3Select.Progress.Enabled {
		getProgressFunc = nil
	}
	writer := newMessageWriter(w, getProgressFunc)

	var outputQueue []sql.Record

	// Create queue based on the type.
	if s3Select.statement.IsAggregated() {
		outputQueue = make([]sql.Record, 0, 1)
	} else {
		outputQueue = make([]sql.Record, 0, 100)
	}
	var err error
	sendRecord := func() bool {
		buf := bufPool.Get()
		buf.Reset()

import com.google.errorprone.annotations.concurrent.LazyInit;
import com.google.j2objc.annotations.RetainedLocalRef;
import java.util.Collections;
import java.util.List;
import org.jspecify.annotations.Nullable;

/** Aggregate future that collects (stores) results of each future. */
@GwtCompatible
abstract class CollectionFuture<V extends @Nullable Object, C extends @Nullable Object>
    extends AggregateFuture<V, C> {
  /*