buf.append('[');
            boolean first = true;
            for (final Object child : (String[]) obj) {
                if (first) {
                    first = false;
                } else {
                    buf.append(',');
                }
                buf.append(escapeJson(child));
            }
            buf.append(']');
        } else if (obj instanceof List<?>) {

    /** Generic read permission */
    public static final int GENERIC_READ = 0x80000000; // 31

    /** Inheritance flag: child objects inherit this ACE */
    public static final int FLAGS_OBJECT_INHERIT = 0x01;
    /** Inheritance flag: child containers inherit this ACE */
    public static final int FLAGS_CONTAINER_INHERIT = 0x02;
    /** Inheritance flag: inheritance stops after one level */

 * Note that the aggregator project is required to have a {@code pom} packaging.</p>
 *
 * <p><dfn>Project inheritance</dfn> defines a parent-child relationship between projects.
 * The <dfn>child project</dfn> inherits all the information from the <dfn>parent project</dfn>
 * POM.</p>
 *
 */

        File pom0 = new File(localRepo, "p0/pom.xml");
        File pom0Basedir = pom0.getParentFile();
        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load the child project, which inherits from p0...
        MavenProject project0 = getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

     */
    boolean isAllowStubModel();

    /**
     * Determines whether the project builder should recursively build parent/child projects.
     * When true, the builder will process parent POMs and child modules as needed.
     *
     * @return true if the build should be recursive, false otherwise
     */
    boolean isRecursive();

    /**

        queryProcessor = new QueryProcessor();
        queryProcessor.init();
        ComponentUtil.register(queryProcessor, "queryProcessor");

        // Call child class specific setup
        setUpChild();
    }

    /**
     * Override this method in child classes to perform additional setup
     */
    protected void setUpChild() throws Exception {
        // Default implementation does nothing
    }

    /**

        File pom0 = new File(localRepo, "p0/pom.xml");
        File pom0Basedir = pom0.getParentFile();
        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load the child project, which inherits from p0...
        MavenProject project0 = getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

    /**
     * Generic read permission
     */
    int GENERIC_READ = 0x80000000; // 31

    /**
     * Inheritance flag: child objects inherit this ACE
     */
    int FLAGS_OBJECT_INHERIT = 0x01;
    /**
     * Inheritance flag: child containers inherit this ACE
     */
    int FLAGS_CONTAINER_INHERIT = 0x02;
    /**
     * Inheritance flag: inheritance stops after one level
     */

    protected @Nullable T computeNext() {
      while (!stack.isEmpty()) {
        PostOrderNode<T> top = stack.getLast();
        if (top.childIterator.hasNext()) {
          T child = top.childIterator.next();
          stack.addLast(expand(child));
        } else {
          stack.removeLast();
          return top.root;
        }
      }
      return endOfData();
    }

 * session events and their originating operations in the application code. The trace structure
 * supports the following key features:
 *
 * <ul>
 *   <li>Maintains parent-child relationships between requests to track operation nesting</li>
 *   <li>Carries contextual data describing the current request or operation</li>
 *   <li>Supports both internal session operations and client-provided trace information</li>