public interface MavenPluginConfigurationValidator {
    /**
     * Checks mojo configuration issues.
     */
    void validate(
            MavenSession mavenSession,
            MojoDescriptor mojoDescriptor,
            Class<?> mojoClass,
            PlexusConfiguration pomConfiguration,
            ExpressionEvaluator expressionEvaluator);

            MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

            String scopeToCollect = mojoDescriptor.getDependencyCollectionRequired();
            if (scopeToCollect != null && !scopeToCollect.isEmpty()) {
                scopesToCollect.add(scopeToCollect);
            }

            String scopeToResolve = mojoDescriptor.getDependencyResolutionRequired();

        requireNonNull(project, "project" + " cannot be null");
        try {
            MojoExecution mojoExecution = lookup.lookup(MojoExecution.class);
            MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();
            PluginDescriptor pluginDescriptor = mojoDescriptor.getPluginDescriptor();
            return getMavenSession().getPluginContext(pluginDescriptor, ((DefaultProject) project).getProject());

 */
package org.apache.maven.plugin;

import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.codehaus.plexus.classworlds.realm.ClassRealm;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.RemoteRepository;

                    return retVal;
                }
            }

            // Was not an expression
            return expression.replace("$$", "$");
        }

        MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

        if ("localRepository".equals(expression)) {
            value = session.getLocalRepository();
        } else if ("session".equals(expression)) {

import java.util.Optional;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.model.PluginExecution;
import org.apache.maven.api.plugin.descriptor.MojoDescriptor;
import org.apache.maven.api.xml.XmlNode;

/**
 * A {@code MojoExecution} represents a single execution of a Maven Plugin during a given build.

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.BuildPluginManager;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.codehaus.plexus.classworlds.realm.ClassRealm;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.RemoteRepository;

                else {
                    for (String goal : execution.getGoals()) {
                        MojoDescriptor mojoDescriptor = pluginManager.getMojoDescriptor(
                                plugin, goal, project.getRemotePluginRepositories(), session.getRepositorySession());

                        phase = mojoDescriptor.getPhase();
                        if (aliases.containsKey(phase)) {

import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException;
import org.apache.maven.plugin.version.PluginVersionResolutionException;
import org.apache.maven.project.MavenProject;

/**
 * @since 3.0
 */

        return plugins;
    }

    /**
     * Get set of mojos used but not marked @threadSafe
     *
     * @return the set of mojo descriptors
     */
    public Set<MojoDescriptor> getNonThreadSafeMojos() {
        Set<MojoDescriptor> mojos = new HashSet<>();
        for (ExecutionPlanItem executionPlanItem : planItem) {
            final MojoExecution mojoExecution = executionPlanItem.getMojoExecution();