@Override
    public boolean presentInConfig(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        ActivationProperty property = activation.getProperty();

        return property != null;
    }

    @Override
    public boolean isActive(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        String jdk = activation.getJdk();

        if (jdk == null) {
            return false;
        }

    @Override
    public boolean isActive(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        ActivationOS os = activation.getOs();

        if (os == null) {
            return false;
        }

        boolean active = ensureAtLeastOneNonNull(os);

  </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>

        notActivated.setId("notActivated");

        Activation nonActivation = new Activation();

        nonActivation.setJdk("19.2");

        notActivated.setActivation(nonActivation);

        Profile defaultActivated = new Profile();
        defaultActivated.setId("defaultActivated");

        Activation defaultActivation = new Activation();

        defaultActivation.setActiveByDefault(true);

        profile.setSource("profiles.xml");

        org.apache.maven.profiles.Activation profileActivation = profileXmlProfile.getActivation();

        if (profileActivation != null) {
            Activation activation = new Activation();

            activation.setActiveByDefault(profileActivation.isActiveByDefault());

            activation.setJdk(profileActivation.getJdk());

                .name("name" + Long.toHexString(entropy.nextLong()))
                .version("version" + Long.toHexString(entropy.nextLong()))
                .build();
        Activation a = Activation.newBuilder()
                .activeByDefault(entropy.nextBoolean())
                .jdk("jdk" + Long.toHexString(entropy.nextLong()))
                .file(af)
                .property(ap)
                .os(ao)

    private static final String JDK_VERSION = System.getProperty("java.version");

    public boolean isActive(Profile profile) throws ProfileActivationException {
        Activation activation = profile.getActivation();

        String jdk = activation.getJdk();

        // null case is covered by canDetermineActivation(), so we can do a straight startsWith() here.
        if (jdk.startsWith("[") || jdk.startsWith("(")) {

    @Override
    public boolean isActive(Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {
        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        ActivationFile file = activation.getFile();

        if (file == null) {
            return false;
        }

        String path;
        boolean missing;

  <groupId>org.apache.maven.its.mng3545</groupId>
  <artifactId>test-artifact</artifactId>
  <version>1.0-SNAPSHOT</version>
  <profiles>
    <profile>
      <id>profile1</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.its.plugins</groupId>
            <artifactId>maven-it-plugin-touch</artifactId>