.groupId("org.apache")
                .artifactId("apache")
                .version("(,2.0)")
                .build();

        AtomicReference<org.apache.maven.api.model.Parent> modified = new AtomicReference<>();
        assertNotNull(this.newModelResolver().resolveModel(session, parent, modified));
        assertEquals("1", modified.get().getVersion());
    }

    @Test

                    }

                    @Override
                    protected boolean exec() {
                        try {
                            AtomicReference<Parent> modified = new AtomicReference<>();
                            ModelSource source = doResolveModel(parent, modified);
                            result = new Result(source, modified.get(), null);

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

import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;

import org.apache.maven.api.Service;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.model.Dependency;

                        ModelProblemUtils.toSourceHint(childModel)));

        ModelSource modelSource;
        try {
            AtomicReference<Parent> modified = new AtomicReference<>();
            Session session = request.getSession()
                    .withRemoteRepositories(request.getModelRepositoryHolder().getRepositories());

@IgnoreJRERequirement // Users will use this only if they're already using streams.
@Beta // TODO: b/288085449 - Remove.
public final class MoreCollectors {

  /*
   * TODO(lowasser): figure out if we can convert this to a concurrent AtomicReference-based
   * collector without breaking j2cl?
   */
  private static final Collector<Object, ?, Optional<Object>> TO_OPTIONAL =
      Collector.of(
          ToOptionalState::new,
          ToOptionalState::add,

import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.ProjectCycleException;