import javax.xml.parsers.ParserConfigurationException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

public class ClassDocExtensionsBuilder {
    private final DslDocModel model;
    private final GenerationListener listener;

    public ClassDocExtensionsBuilder(DslDocModel model, GenerationListener listener) {
        this.model = model;
        this.listener = listener;
    }

    /**

public class ClassDocBuilder {
    private final ClassDocCommentBuilder commentBuilder;
    private final ClassDocPropertiesBuilder propertiesBuilder;
    private final ClassDocMethodsBuilder methodsBuilder;
    private final ClassDocExtensionsBuilder extensionsBuilder;
    private final ClassDocSuperTypeBuilder superTypeBuilder;
    private final GenerationListener listener = new DefaultGenerationListener();

import gradlebuild.docs.dsl.docbook.model.ClassDoc

class ClassDocExtensionsBuilderTest extends gradlebuild.docs.XmlSpecification {
    final DslDocModel docModel = Mock()
    final ClassDocExtensionsBuilder builder = new ClassDocExtensionsBuilder(docModel, null)

    def buildsExtensionsForClassMixins() {
        ClassMetaData classMetaData = classMetaData()