* inject time: see
     * <a href="/ref/current/maven-core/apidocs/org/apache/maven/plugin/PluginParameterExpressionEvaluator.html">
     * PluginParameterExpressionEvaluator</a>.
     * @return the default value
     */
    @Nonnull
    String defaultValue() default "";

    /**
     * is the parameter required?

import org.codehaus.plexus.interpolation.RegexBasedInterpolator;

/**
 * Use a regular expression search to find and resolve expressions within the POM.
 *
 * TODO Consolidate this logic with the PluginParameterExpressionEvaluator, minus deprecations/bans.
 */
@Deprecated
public class RegexBasedModelInterpolator extends AbstractStringBasedModelInterpolator {

    public RegexBasedModelInterpolator() throws IOException {}

import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;

/**
 * Use a regular expression search to find and resolve expressions within the POM.
 *
 * TODO Consolidate this logic with the PluginParameterExpressionEvaluator, minus deprecations/bans.
 */
@Deprecated
public abstract class AbstractStringBasedModelInterpolator extends AbstractLogEnabled
        implements ModelInterpolator, Initializable {