return inEdgeMap.containsKey(obj) || outEdgeMap.containsKey(obj);
      }
    };
  }

  @Override
  public Set<E> inEdges() {
    return Collections.unmodifiableSet(inEdgeMap.keySet());
  }

  @Override
  public Set<E> outEdges() {
    return Collections.unmodifiableSet(outEdgeMap.keySet());
  }

  @Override
  public N adjacentNode(E edge) {

    public void setMirroredRepositories(List<ArtifactRepository> mirroredRepositories) {
        if (mirroredRepositories != null) {
            this.mirroredRepositories = Collections.unmodifiableList(mirroredRepositories);
        } else {
            this.mirroredRepositories = Collections.emptyList();
        }
    }

    public boolean isBlocked() {
        return blocked;
    }

    public void setBlocked(boolean blocked) {

 */
package org.apache.maven.graph;

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

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.maven.MavenExecutionException;

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

import java.util.Collections;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotSame;

class ProblemCollectorFactoryTest {

 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.collect.Multisets.UnmodifiableMultiset;
import java.util.Collections;
import java.util.Comparator;
import java.util.SortedSet;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**

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

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;

abstract class ExtensibleEnums {

    static Language language(String id) {
        return new DefaultLanguage(id);
    }

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

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

import java.io.File;
import java.util.Collections;

import org.apache.maven.api.services.ModelBuilder;
import org.apache.maven.api.services.model.LifecycleBindingsInjector;
import org.apache.maven.bridge.MavenRepositorySystem;

 * limitations under the License.
 */
package okhttp3.recipes;

import java.io.IOException;
import java.security.cert.Certificate;
import java.util.Collections;
import java.util.Set;
import okhttp3.CertificatePinner;
import okhttp3.Interceptor;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class CheckHandshake {

                public boolean containsAll(Collection<?> c) {
                  return map.entrySet().containsAll(c);
                }

                @Override
                public boolean removeAll(Collection<?> c) {
                  return map.entrySet().removeAll(c);
                }

                @Override
                public boolean retainAll(Collection<?> c) {

     *
     * @return The problems that caused this exception, never {@code null}.
     */
    public List<ModelProblem> getProblems() {
        if (result == null) {
            return Collections.emptyList();
        }
        return Collections.unmodifiableList(result.getProblems());
    }

    private static String toMessage(ModelBuildingResult result) {
        if (result != null && !result.getModelIds().isEmpty()) {