import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.codehaus.plexus.classworlds.realm.ClassRealm;

import static java.util.function.Function.identity;
import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toMap;

/**

    1.0
  </version>
  <packaging>
    pom
  </packaging>

  <name>Maven Integration Test :: MNG-4070</name>
  <description>
    Test that whitespace around artifact coordinates does not change artifact identity.
  </description>

  <version>1.0</version>
  <packaging>jar</packaging>

  <name>Maven Integration Test :: MNG-4070 :: Child</name>
  <description>
    Test that whitespace around artifact coordinates does not change artifact identity.
  </description>

  <dependencies>
    <dependency>
      <!-- NOTE: The ugly formatting is essential part of this test! -->
      <groupId>   org.apache.maven.its.mng4070   </groupId>

 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;
import static java.util.function.Function.identity;
import static java.util.stream.Collectors.toList;
import static org.apache.maven.execution.MavenExecutionRequest.REACTOR_MAKE_DOWNSTREAM;
import static org.apache.maven.execution.MavenExecutionRequest.REACTOR_MAKE_UPSTREAM;

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

/**
 * Exception thrown when the identity of an artifact can not be established,
 * e.g. one of groupId, artifactId, version or type is null.
 */
public class InvalidArtifactRTException extends RuntimeException {

    private final String groupId;

                .flatMap(p -> p.getProfiles().stream())
                .map(Profile::getId);

        return Stream.of(projectProfiles, settingsProfiles, superPomProfiles)
                .flatMap(Function.identity())
                .collect(toSet());
    }

    /**
     * Check whether the required profiles were found in any of the projects we're building or the settings.
     * @param session the Maven session.

import org.apache.maven.eventspy.AbstractEventSpy;
import org.apache.maven.execution.ExecutionEvent;
import org.apache.maven.internal.impl.resolver.type.DefaultType;

import static java.util.function.Function.identity;
import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Singleton
public class DefaultTypeRegistry extends AbstractEventSpy implements TypeRegistry {
    private final Map<String, Type> types;

 */
package org.apache.maven.lifecycle.mapping;

import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static java.util.function.Function.identity;
import static java.util.stream.Collectors.toMap;

/**
 * DefaultLifecycleMapping
 */
public class DefaultLifecycleMapping implements LifecycleMapping {

    private List<Lifecycle> lifecycles;

            <type>RepositoryPolicy</type>
          </association>
        </field>
      </fields>
      <!-- prevent modello generation of an incorrect equals method. Could be avoided by using <identity/> tags to mark ID as the only identity field -->
      <codeSegments>
        <codeSegment>
          <version>1.0.0</version>
          <code><![CDATA[
            public boolean equals( Object obj )
            {