org.apache.maven.api.model.Model model,
            List<org.apache.maven.api.model.Profile> profiles,
            ModelBuildingRequest request,
            ModelProblemCollector problems) {
        for (org.apache.maven.api.model.Profile profile : profiles) {
            if (profile != null) {
                model = injectProfile(model, profile, request, problems);
            }
        }
        return model;
    }

```

### Profiles

Istio Helm charts have a concept of a `profile`, which is a bundled collection of value presets.
These can be set with `--set profile=<profile>`.
For example, the `demo` profile offers a preset configuration to try out Istio in a test environment, with additional features enabled and lowered resource requirements.

                && (profile.getDependencyManagement() == null
                        || profile.getDependencyManagement().getDependencies().isEmpty())
                && profile.getDistributionManagement() == null
                && profile.getModules().isEmpty()
                && profile.getSubprojects().isEmpty()
                && profile.getProperties().isEmpty()

                <file>
                    <missing>simple.xml</missing>
                </file>
            </activation>
            <properties>
                <profile.miss>activated-2</profile.miss>
            </properties>
        </profile>
    </profiles>

     * Gets the assembled model with inheritance, interpolation and profile injection.
     *
     * @return The assembled model, never {@code null}.
     */
    @Nonnull
    Model getEffectiveModel();

    /**
     * Gets the profiles that were active during model building.
     *
     * @return The active profiles of the model or an empty list if the model has no active profiles.
     */
    @Nonnull

 * under the License.
 */
package org.apache.maven.profiles.manager;

import javax.inject.Inject;

import java.util.List;
import java.util.Properties;

import org.apache.maven.model.Activation;
import org.apache.maven.model.ActivationProperty;
import org.apache.maven.model.Profile;
import org.apache.maven.profiles.DefaultProfileManager;
import org.apache.maven.profiles.ProfileManager;
import org.codehaus.plexus.PlexusContainer;

    /**
     * Gets the external profiles that should be considered for model building.
     *
     * @return The external profiles that should be considered for model building, never {@code null}.
     */
    List<Profile> getProfiles();

    /**
     * Sets the external profiles that should be considered for model building.
     *

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

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

    /**
     * Gets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @return The identifiers of those profiles to activate, never {@code null}.
     */
    List<String> getActiveProfileIds();

    /**
     * Gets the identifiers of those profiles that should be deactivated by explicit demand.
     *
     * @return The identifiers of those profiles to deactivate, never {@code null}.
     */

    @Override
    public List<String> getActiveProfileIds() {
        return activeProfileIds;
    }

    /**
     * Sets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @param activeProfileIds The identifiers of those profiles to activate, may be {@code null}.
     * @return This context, never {@code null}.
     */