.getActivation()
                .getFile()
                .getExists();

        assertEquals(originalExists, resultExists);
        assertTrue(result.getEffectiveModel()
                .getProfiles()
                .get(1)
                .getActivation()
                .getFile()
                .getExists()
                .contains(BASE_DIR));
    }

        Profile profile = newExistsProfile("file.txt");
        assertEquals("file.txt", profile.getActivation().getFile().getExists());

        assertActivation(true, profile, context);

        assertEquals("file.txt", profile.getActivation().getFile().getExists());
    }

    private Profile newExistsProfile(String filePath) {
        ActivationFile activationFile =

import org.codehaus.plexus.interpolation.MapBasedValueSource;
import org.codehaus.plexus.interpolation.RegexBasedInterpolator;

/**
 * Finds an absolute path for {@link ActivationFile#getExists()} or {@link ActivationFile#getMissing()}
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated
public class ProfileActivationFilePathInterpolator {

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

        String path;
        boolean missing;

        if (StringUtils.isNotEmpty(file.getExists())) {
            path = file.getExists();
            missing = false;
        } else if (StringUtils.isNotEmpty(file.getMissing())) {
            path = file.getMissing();
            missing = true;
        } else {

            if (profileFile != null) {
                ActivationFile file = new ActivationFile();

                file.setExists(profileFile.getExists());
                file.setMissing(profileFile.getMissing());

                activation.setFile(file);
            }

            profile.setActivation(activation);
        }

        ActivationFile actFile = activation.getFile();

        if (actFile != null) {
            // check if the file exists, if it does then the profile will be active
            String fileString = actFile.getExists();

            RegexBasedInterpolator interpolator = new RegexBasedInterpolator();
            try {
                interpolator.addValueSource(new EnvarBasedValueSource());
            } catch (IOException e) {

                    activationFile.setMissing(val);
                }
                // Exists
                org = activationFile.getExists();
                val = interpolate(org);
                if (org != val) {
                    activationFile.setExists(val);
                }
            }
        }

        private void visit(ModelBase modelBase) {
            if (modelBase != null) {

                Interpolation nt =
                        new Interpolation(fa, s -> profileActivationFilePathInterpolator.interpolate(s, context));
                nt.performFor(fa.getExists(), "exists", fa::setExists);
                nt.performFor(fa.getMissing(), "missing", fa::setMissing);
            });
            a.map(Activation::getOs).ifPresent(oa -> {

        root.map(Activation::getFile).ifPresent(fa -> {
            stk.push(new ActivationFrame("file", Optional.of(fa)));
            stk.push(new ActivationFrame("exists", Optional.empty()));
            validator.accept(fa.getExists());
            stk.peek().location = "missing";
            validator.accept(fa.getMissing());
            stk.pop();
            stk.pop();
        });
        root.map(Activation::getOs).ifPresent(oa -> {