[Demonstration 1]

[Buggy Method]
@Test
public void testAskReturnsFirstOnTickAsk() throws JFException {
    assertThat(quoteEngine.ask(testInstrumentEURUSD), equalTo(firstTickMockEURUSD.getAsk()));
}

[Buggy Hunk]
public void testAskReturnsFirstOnTickAsk() throws JFException {

[Patch]
public void testAskReturnsFirstOnTickAsk() {

[Demonstration 2]

[Buggy Method]
@RequestMapping(value = "/addVolunteer", method = RequestMethod.POST)
public String addVolunteer(@ModelAttribute("SpringWeb") Volunteer volunteer, ModelMap model) {
    model.addAttribute("firstName", volunteer.getFirstName());
    model.addAttribute("lastName", volunteer.getLastName());
    model.addAttribute("dob", volunteer.getDob());
    return "result";
}

[Buggy Hunk]
model.addAttribute("dob", volunteer.getDob());

[Patch]
model.addAttribute("dob", volunteer.getDob().toString());

[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));