</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>

	DB.Create(&member)

	var profile Profile
	if err := DB.First(&profile, "id = ?", member.Profile.ID).Error; err != nil {
		t.Fatalf("failed to find profile, got error: %v", err)
	} else if profile.Refer != member.ProfileID {
		t.Fatalf("member id is not equal: expects: %v, got: %v", profile.Refer, member.ProfileID)
	}

	DB.Model(&profile).Update("Refer", 100)

	var member2 Member

    <packaging>pom</packaging>

    <profiles>
        <profile>
            <id>+invalid-id</id>
        </profile>
        <profile>
            <id>-invalid-id</id>
        </profile>
        <profile>
            <id>!invalid-id</id>
        </profile>
        <profile>
            <id>?invalid-id</id>
        </profile>
        <profile>
            <id>valid-id</id>
        </profile>

    @Override
    public void setProfiles(List<Profile> profiles) {
        if (profiles != null) {
            this.profiles = new ArrayList<>(profiles);
        } else {
            this.profiles.clear();
        }
    }

    @Override
    public void addProfile(Profile profile) {
        profiles.add(profile);
    }

    @Override
    public List<Profile> getProfiles() {
        return profiles;
    }

            } else {
                List<File> pomFiles = collisions.get(projectId);

                if (pomFiles == null) {
                    pomFiles = new ArrayList<>(Arrays.asList(collision.getFile(), project.getFile()));
                    collisions.put(projectId, pomFiles);
                } else {
                    pomFiles.add(project.getFile());
                }
            }
        }

  <groupId>gid</groupId>
  <version>0.1</version>
  <packaging>pom</packaging>

  <profiles>

    <profile>
      <id>exists-project-version</id>
      <activation>
        <file>
          <exists>${project.version}/test.txt</exists>
        </file>
      </activation>
    </profile>
    <profile>
      <id>missing-project-version</id>
      <activation>
        <file>

    }

    @Override
    public List<Profile> getProfiles() {
        if (profiles == null) {
            profiles = new ArrayList<>();
        }
        return profiles;
    }

    @Override
    public MavenExecutionRequest setProfiles(List<Profile> profiles) {
        if (profiles != null) {
            this.profiles = new ArrayList<>(profiles);
        } else {
            this.profiles = null;

    /**
     * Returns all profiles defined in this project and all of its parent projects.
     * <p>
     * This method traverses the parent hierarchy and includes profiles defined in parent POMs.
     * The returned list contains profiles from the current project and all of its ancestors in
     * the project inheritance chain.
     *

    /**
     * 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}.
     */

    }

    private static boolean isEmpty(Profile profile) {
        return profile.getActivation() == null
                && profile.getBuild() == null
                && profile.getDependencies().isEmpty()
                && (profile.getDependencyManagement() == null
                        || profile.getDependencyManagement().getDependencies().isEmpty())
                && profile.getDistributionManagement() == null