that manages the steps sequence.

 The sequence is divided into 2 phases:

 * phase 1

   ** profile activation: see {{{./apidocs/org/apache/maven/model/profile/activation/package-summary.html}available activators}}.
   Notice that model interpolation hasn't happened yet, then interpolation for file-based activation is limited to
   <<<$\{basedir}>>> (since Maven 3), <<<$\{rootDirectory}>>> (since Maven 4), system properties and user properties

    /**
     * Return the requested activation(s) of project(s) in this execution.
     * @return requested (de-)activation(s) of project(s) in this execution. Never {@code null}.
     */
    ProjectActivation getProjectActivation();

    /**
     * Return the requested activation(s) of profile(s) in this execution.
     * @return requested (de-)activation(s) of profile(s) in this execution. Never {@code null}.
     */

     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The execution properties, never {@code null}.
     */
    Map<String, String> getSystemProperties();

    /**
     * Gets the user properties to use for interpolation and profile activation. The user properties have been

     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**
     * Sets the user properties to use for interpolation and profile activation. The user properties have been

     * Active profiles are those that have been explicitly activated through one of the following means:
     * <ul>
     *   <li>Command line activation using the -P flag</li>
     *   <li>Maven settings activation in settings.xml via &lt;activeProfiles&gt;</li>
     *   <li>Automatic activation via &lt;activation&gt; conditions</li>
     *   <li>The default active profile (marked with &lt;activeByDefault&gt;true&lt;/activeByDefault&gt;)</li>
     * </ul>

        </executions>
      </plugin>
    </plugins>
  </build>

  <profiles>
    <profile>
      <id>create-distribution-in-dir</id>
      <activation>
        <property>
          <name>distributionTargetDir</name>
        </property>
      </activation>
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>

     * @param id The identifier of the profile.
     */
    public void deactivateOptionalProfile(String id) {
        this.activations.put(id, ActivationSettings.deactivatedOpt());
    }

    /**
     * Adds a profile activation to the request.
     * @param id The identifier of the profile.
     * @param active Should the profile be activated?

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

import org.apache.maven.model.Profile;

/**
 * DetectedProfileActivator
 */
@Deprecated
public abstract class DetectedProfileActivator implements ProfileActivator {
    @Override

 */
@Deprecated
public abstract class AbstractProfileActivatorTest<T extends ProfileActivator> {

    protected T activator;

    @BeforeEach
    abstract void setUp() throws Exception;

    @AfterEach
    void tearDown() throws Exception {
        activator = null;
    }

    protected ProfileActivationContext newContext(final Properties userProperties, final Properties systemProperties) {

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

import org.apache.maven.model.Profile;

/**
 * ProfileActivator
 */
@Deprecated
public interface ProfileActivator {

    String ROLE = ProfileActivator.class.getName();