[Demonstration 1]

[Buggy Method]
public static void main(String[] args) {
    Cluster cluster = Cluster.build().addContactPoint("192.168.94.11").port(8182).create();
    Graph graph = EmptyGraph.instance();
    GraphTraversalSource g = graph.traversal().withRemote(DriverRemoteConnection.using(cluster, "metagraph"));
    System.out.println("test---" + g.V().count().next().longValue());
    g.addV("test").next();
    //CompletableFuture<List<Result>> results = client.submit("[1,2,3,4]").all();
    //System.out.println("test"+results.toString());
}

[Buggy Hunk]
g.addV("test").next();

[Patch]
g.addV("test");

[Demonstration 2]

[Buggy Method]
@Test
public void isJenkinsJVM() throws Exception {
    assertThat(new IsJenkinsJVM().call(), is(true));
    DumbSlave slave = j.createOnlineSlave();
    assertThat(slave.getChannel().call(new IsJenkinsJVM()), is(false));
}

[Buggy Hunk]
public void isJenkinsJVM() throws Exception {

[Patch]
public void isJenkinsJVM() throws Throwable {

[Demonstration 3]

[Buggy Method]
public static Result service(String ownerName, String projectName, String service, boolean isAdvertise) throws IOException, UnsupportedOperationException, ServletException {
    if (!isSupportedService(service)) {
        return forbidden(String.format("Unsupported service: '%s'", service));
    }
    Project project = Project.findByOwnerAndProjectName(ownerName, projectName);
    if (project == null) {
        return notFound();
    }
    models.User user = UserApp.currentUser();
    if (!isAllowed(project, service)) {
        if (user.isAnonymous()) {
            return BasicAuthAction.unauthorized(response());
        } else {
            // If you want the Git client showing your custom message to
            // the user, the Content-Type should be exact "text/plain"
            // without any parameter. For more details, see the code at
            // https://github.com/git/git/commit/426e70d4a11ce3b4f70636d57c6a0ab16ae08a00#diff-eea0ad565ec5903a11b6023755d491cfR154
            response().setHeader("Content-Type", "text/plain");
            return forbidden(String.format("'%s' has no permission to '%s/%s'.", user.name, ownerName, projectName));
        }
    }
    if (isAdvertise) {
        return ok(RepositoryService.gitAdvertise(project, service, response()));
    } else {
        if (request().body().isMaxSizeExceeded()) {
            return status(REQUEST_ENTITY_TOO_LARGE);
        } else {
            user.visits(project);
            return ok(RepositoryService.gitRpc(project, service, request(), response()));
        }
    }
}

[Buggy Hunk]
user.name, ownerName, projectName));

[Patch]
user.loginId, ownerName, projectName));