}

        toolchains = interpolate(toolchains, request, problems);

        return toolchains;
    }

    private PersistedToolchains interpolate(
            PersistedToolchains toolchains, ToolchainsBuilderRequest request, List<BuilderProblem> problems) {

        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();

            }
        });

        interpolator.addValueSource(new MapBasedValueSource(context.getProjectProperties()));
        interpolator.addValueSource(new MapBasedValueSource(context.getUserProperties()));
        interpolator.addValueSource(new MapBasedValueSource(context.getSystemProperties()));

        String absolutePath = interpolator.interpolate(path, "");

public interface ModelInterpolator {

    /**
     * Interpolates expressions in the specified model. Note that implementations are free to either interpolate the
     * provided model directly or to create a clone of the model and interpolate the clone. Callers should always use
     * the returned model and must not rely on the input model being updated.
     *
     * @param model The model to interpolate, must not be {@code null}.

        return settings;
    }

    private Settings interpolate(Settings settings, SettingsBuilderRequest request, List<BuilderProblem> problems) {

        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();

        interpolator.addValueSource(new MapBasedValueSource(request.getSession().getUserProperties()));

        interpolator.addValueSource(new MapBasedValueSource(request.getSession().getSystemProperties()));

        StringSearchInterpolator interpolator = new StringSearchInterpolator();
        interpolator.setCacheAnswers(true);
        for (ValueSource vs : valueSources) {
            interpolator.addValueSource(vs);
        }
        for (InterpolationPostProcessor postProcessor : postProcessors) {
            interpolator.addPostProcessor(postProcessor);
        }

            }
        }

        Model tmpModel = lineage.get(0);

        // inject interpolated activations
        List<Profile> interpolated = interpolateActivations(tmpModel.getProfiles(), profileActivationContext, problems);
        if (interpolated != tmpModel.getProfiles()) {
            tmpModel = tmpModel.withProfiles(interpolated);
        }

        // inject external profile into current model

        }

        try {
            path = profileActivationFilePathInterpolator.interpolate(path, context);
        } catch (InterpolationException e) {
            problems.add(
                    BuilderProblem.Severity.ERROR,
                    ModelProblem.Version.BASE,
                    "Failed to interpolate file location " + path + " for profile " + profile.getId() + ": "
                            + e.getMessage(),

RegexBasedInterpolat { private java.util.List valueSources; public void RegexBasedInterpolat(); public void RegexBasedInterpolat(java.util.List); public void addValueSource(ValueSource); public void removeValuesSource(ValueSource); public String interpolate(String, String); } org/codehaus/plexus/util/interpolation/ValueSource.class package org.codehaus.plexus.util.interpolation; public abstract interface ValueSource { public abstract Object getValue(String); } org/codehaus/plexus/util/InterpolationFilterR.class...

        PomTestWrapper pom = buildPom("inherited-properties-interpolation/no-profile/sub");

        assertEquals("CHILD", pom.getValue("properties/overridden"));
        assertEquals("CHILD", pom.getValue("properties/interpolated"));
    }

    /* MNG-4102 */
    @Test
    void testInheritedPropertiesInterpolatedWithValuesFromChildWithActiveProfiles() throws Exception {

        The {@code <parent>} element contains information required to locate the parent project from which
        this project will inherit from.
        <p><strong>Note:</strong> The children of this element are not interpolated and must be given as literal values.</p>
        ]]>
      </description>
      <fields>
        <field>
          <name>groupId</name>
          <version>4.0.0+</version>