import org.codehaus.plexus.interpolation.AbstractValueSource;
import org.codehaus.plexus.interpolation.InterpolationException;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
import org.codehaus.plexus.interpolation.Interpolator;
import org.codehaus.plexus.interpolation.MapBasedValueSource;
import org.codehaus.plexus.interpolation.ObjectBasedValueSource;

  <<<project/scm/@child.scm.url.inherit.append.path>>>.

  []

* Model Interpolation

  Model Interpolation consists in replacing <<<$\{...\}>>> with calculated value. It is done in <<<StringVisitorModelInterpolator>>>
  ({{{./apidocs/org/apache/maven/model/interpolation/StringVisitorModelInterpolator.html}javadoc}},
  {{{./xref/org/apache/maven/model/interpolation/StringVisitorModelInterpolator.html}source}}).

import org.apache.maven.project.path.PathTranslator;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
import org.codehaus.plexus.interpolation.Interpolator;
import org.codehaus.plexus.interpolation.StringSearchInterpolator;
import org.codehaus.plexus.interpolation.ValueSource;
import org.codehaus.plexus.logging.Logger;

/**
 * StringSearchModelInterpolator
 */
@Deprecated

     * @return the user settings source or {@code null} if none
     */
    @Nonnull
    Optional<Source> getUserSettingsSource();

    /**
     * The optional interpolation source used for interpolation.
     *
     * @return the interpolation source for interpolation
     */
    @Nonnull
    Optional<UnaryOperator<String>> getInterpolationSource();

    @Nonnull
    static SettingsBuilderRequest build(

            a.map(Activation::getProperty).ifPresent(pa -> {
                Interpolation nt = new Interpolation(pa, interpolator::interpolate);
                nt.performFor(pa.getName(), "name", pa::setName);
                nt.performFor(pa.getValue(), "value", pa::setValue);
            });
            a.map(Activation::getJdk).ifPresent(ja -> new Interpolation(activation, interpolator::interpolate)

import org.codehaus.plexus.interpolation.AbstractValueSource;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
import org.codehaus.plexus.interpolation.MapBasedValueSource;
import org.codehaus.plexus.interpolation.ObjectBasedValueSource;
import org.codehaus.plexus.interpolation.PrefixAwareRecursionInterceptor;
import org.codehaus.plexus.interpolation.PrefixedObjectValueSource;

public interface ModelValidator {

    /**
     * Checks the specified (raw) model for missing or invalid values. The raw model is directly created from the POM
     * file and has not been subjected to inheritance, interpolation or profile/default injection.
     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.

     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**

     * Returns immutable user properties to use for interpolation. The user properties have been configured directly
     * by the user, e.g. via the {@code -Dkey=value} parameter on the command line.
     *
     * @return the user properties, never {@code null}
     */
    @Nonnull
    Map<String, String> getUserProperties();

    /**
     * Returns immutable system properties to use for interpolation. The system properties are collected from the

     *
     * @return The raw model, never {@code null}.
     */
    Model getRawModel();

    /**
     * Gets the specified raw model as it was read from a model source. Apart from basic validation, a raw model has not
     * undergone any updates by the model builder, e.g. reflects neither inheritance nor interpolation. The model