* <p><b>NOTE:</b> The object-graph navigation actually takes place via the
     * {@link ReflectionValueExtractor} class.</p>
     */
    @Override
    public Object getValue(String expression) {
        if (expression == null || expression.trim().isEmpty()) {
            return null;
        }

        try {
            return ReflectionValueExtractor.evaluate(expression, root, false);
        } catch (Exception e) {

import java.util.HashMap;
import java.util.Map;

import org.apache.maven.api.MojoExecution;
import org.apache.maven.api.Project;
import org.apache.maven.api.Session;
import org.apache.maven.impl.model.reflection.ReflectionValueExtractor;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluationException;
import org.codehaus.plexus.component.configurator.expression.TypeAwareExpressionEvaluator;

/**