}

  public TesterRequirements(TesterRequirements tr) {
    this(tr.getPresentFeatures(), tr.getAbsentFeatures());
  }

  public TesterRequirements() {
    this(Collections.<Feature<?>>emptySet(), Collections.<Feature<?>>emptySet());
  }

  public final Set<Feature<?>> getPresentFeatures() {
    return presentFeatures;
  }

  public final Set<Feature<?>> getAbsentFeatures() {

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.function.BiPredicate;
import java.util.stream.Collector;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tester for {@code Collector} implementations.
 *
 * <p>Example usage:
 *
 * <pre>
 * CollectorTester.of(Collectors.summingInt(Integer::parseInt))

                    newUrlList.add(favoriteLog.getUrl());
                }
                return newUrlList;
            }
            return Collections.<String> emptyList();
        }).orElse(Collections.<String> emptyList());

    }

import com.google.common.collect.testing.features.CollectionSize;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code retainAll} operations on a collection. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
 *

      assertThat(network.edges()).isEmpty(); // no edges can remain if there's no nodes
      AbstractNetworkTest.validateNetwork(network);

      Collections.shuffle(nodeList, gen);
      for (Integer node : nodeList) {
        assertThat(network.addNode(node)).isTrue();
      }
      Collections.shuffle(edgeList, gen);
      for (Object edge : edgeList) {
        assertThat(
                network.addEdge(

      assertThat(graph.edges()).isEmpty(); // no edges can remain if there's no nodes
      AbstractGraphTest.validateGraph(graph);

      Collections.shuffle(nodeList, gen);
      for (Integer node : nodeList) {
        assertThat(graph.addNode(node)).isTrue();
      }
      Collections.shuffle(edgeList, gen);
      for (EndpointPair<Integer> edge : edgeList) {
        assertThat(graph.putEdge(edge.nodeU(), edge.nodeV())).isTrue();

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

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

import org.apache.maven.RepositoryUtils;
import org.apache.maven.artifact.metadata.ArtifactMetadata;

import com.google.common.collect.testing.UnhashableObject;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.SortedSet;

/**
 * Generators of different types of sets and derived collections from sets.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @author Hayward Chan
 */

    // "<String>" is required to work around a javac 1.5 bug.
    Collection<String> c = MinimalCollection.<String>of();
    Set<String> set = copyOf(c);
    assertEquals(Collections.<String>emptySet(), set);
    assertSame(this.<String>of(), set);
  }

  public void testCopyOf_collection_oneElement() {
    Collection<String> c = MinimalCollection.of("a");
    Set<String> set = copyOf(c);

     * @since 3.5.0
     * @deprecated Use {@link #DefaultProjectDependencyGraph(Collection, Collection)} instead.
     */
    @Deprecated
    public DefaultProjectDependencyGraph(List<MavenProject> allProjects, Collection<MavenProject> projects)
            throws CycleDetectedException, DuplicateProjectException {
        this((Collection<MavenProject>) allProjects, projects);
    }

    /**