"Failed to determine activation for profile " + profile.getId(),
                            profile.getLocation(""),
                            e);
                    return false;
                }
            }
        }
        return isActive;
    }

    private boolean isActiveByDefault(Profile profile) {
        Activation activation = profile.getActivation();

import java.util.Map;
import java.util.Properties;
import java.util.stream.Collectors;

import org.apache.maven.api.services.model.*;

/**
 * Describes the environmental context used to determine the activation status of profiles.
 *
 */
public class DefaultProfileActivationContext implements ProfileActivationContext {

    private List<String> activeProfileIds = Collections.emptyList();

  </build>

  <profiles>
    <profile>
      <id>default-active</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      </properties>
    </profile>
    <profile>
      <id>file</id>
      <activation>
        <file>
          <exists>simple.xml</exists>
        </file>

import org.apache.maven.api.di.Singleton;
import org.apache.maven.api.model.Activation;
import org.apache.maven.api.model.Profile;
import org.apache.maven.api.services.ModelProblemCollector;
import org.apache.maven.api.services.model.ProfileActivationContext;
import org.apache.maven.api.services.model.ProfileActivator;

/**
 * Determines profile activation based on the project's packaging.
 */
@Named("packaging")
@Singleton

    <interpolated>${overridden}</interpolated>
  </properties>

  <profiles>
    <profile>
      <id>it-parent</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
    </profile>
  </profiles>

        <version>2.4.3</version>
      </plugin>
    </plugins>
  </build>

  <profiles>
     <profile>
      <id>standard</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-assembly2-plugin</artifactId>

        </plugin>
      </plugins>
    </pluginManagement>
  </build>

  <profiles>
    <profile>
      <id>maven-core-it</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <build>
        <pluginManagement>
          <plugins>
            <plugin>
              <groupId>org.apache.maven.its.plugins</groupId>

      <artifactId>b</artifactId>
      <version>0.1</version>
    </dependency>
  </dependencies>

  <profiles>
    <profile>
      <id>mng-1412</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <!-- profile dependencies last, in the order given -->
      <dependencies>
        <dependency>
          <!-- deliberately respecifying this dep to check merging behavior -->

  </description>

  <properties>
    <overridden>CHILD</overridden>
  </properties>

  <profiles>
    <profile>
      <id>it-child</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
    </profile>
  </profiles>

  </build>

  <profiles>
    <profile>
      <!-- an active but empty profile to ensure profile injection does not interfere with plugin configuration -->
      <id>child</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
    </profile>
  </profiles>