tempProjectDir.delete();
        assertThat(result, is(true));
    }

    @Test
    void getOptionalProjectsBySelectorsReturnsMatches() {
        final HashSet<String> selectors = new HashSet<>();
        selectors.add(":maven-core");
        selectors.add(":optional");

        final MavenProject mavenProject = createMavenProject("maven-core");

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.lifecycle.internal.builder;

import java.util.HashSet;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.lifecycle.internal.ExecutionEventCatapult;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.impl;

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.regex.Pattern;

import org.apache.maven.api.services.BuilderProblem;
import org.apache.maven.api.settings.Mirror;

        HashSet<String> exportedPackages = new HashSet<String>();
        exportedPackages.add("group1:artifact1");

        return new DefaultClassRealmManager(
                new DefaultCoreRealm(container),
                new ArrayList<ClassRealmManagerDelegate>(),
                new CoreExports(new ClassRealm(null, "test", null), new HashSet<String>(), exportedPackages));
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project;

import java.nio.file.Path;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.api.model.Model;

/**

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

import javax.inject.Inject;

import java.io.File;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;

import org.apache.maven.AbstractCoreMavenComponentTestCase;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.execution.MavenSession;

import javax.inject.Inject;
import javax.inject.Named;

import java.io.File;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

import org.apache.maven.RepositoryUtils;

        this.repositoryIds = new HashSet<>();
    }

    private DefaultModelResolver(DefaultModelResolver original) {
        this.remoteRepositoryManager = original.remoteRepositoryManager;
        this.repositories = new ArrayList<>(original.repositories);
        this.externalRepositories = original.externalRepositories;
        this.repositoryIds = new HashSet<>(original.repositoryIds);
    }

    @Override

            Collection<Profile> profiles, ProfileActivationContext context, ModelProblemCollector problems) {
        Collection<String> activatedIds = new HashSet<>(context.getActiveProfileIds());
        Collection<String> deactivatedIds = new HashSet<>(context.getInactiveProfileIds());

        List<Profile> activeProfiles = new ArrayList<>(profiles.size());
        List<Profile> activePomProfilesByDefault = new ArrayList<>();

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.lifecycle.internal;

import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.stream.Collectors;