}

    protected void setParent(Object parent, Object child) {
        parent.appendChild(child)
    }

    def appendChild(Node node) {
        if (!current) {
            elements << (Element) document.importNode(node, true)
        } else  {
            current.appendChild(document.importNode(node, true))
        }
    }

    def appendChildren(Iterable<? extends Node> nodes) {
        nodes.each { appendChild(it) }

        CtClass current = c
        while (current != null) {
            if (containsMethod(current, method)) {
                classesContainingMethod.add(current)
            } else {
                break
            }
            current = current.getSuperclass()
        }

        for (int i = classesContainingMethod.size() - 1; i > 0; --i) {
            current = classesContainingMethod.get(i)

        classes['NewSub'].superclass = classes['NewBase']

        apiClass.compatibilityChanges >> [JApiCompatibilityChange.METHOD_REMOVED_IN_SUPERCLASS]
    }

    def "method removal can be reported if current class is first public class"() {
        given:
        apiClass.oldClass >> Optional.of(classes['OldBase'])
        apiClass.newClass >> Optional.of(classes['NewBase'])

        when:

    }

    static List<String> branchesOf(String commit) {
        return getStdout("git branch -r --contains $commit")
            .readLines()
            .collect { it.replace("*", "") } // remove the * from the current branch, e.g. * master -> master
            .collect { it.trim() }
            .grep { !it.isEmpty() }
    }

    static List<String> parentCommitsOf(String commit) {