[Demonstration 1]

[Buggy Method]
private void createUserEggLinksMap(List<UserEggLinks> objects) {
    for (UserEggLinks item : objects) {
        eggMap.put(item.getEgg().getString("title"), item.getEgg().getObjectId());
    }
    setupQueryAdapter();
}

[Buggy Hunk]
eggMap.put(item.getEgg().getString("title"), item.getEgg().getObjectId());

[Patch]
userEggMap.add(item.getEgg().getObjectId());

[Demonstration 2]

[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));

[Demonstration 3]

[Buggy Method]
@Override
public void run(Map<String, String> parameters) throws UserErrorMessage {
    ODPDBAccess db = getDB();
    CachedDatastoreService ds = getDS();
    CachedEntity character = db.getCurrentCharacter();
    GroupService service = new GroupService(db, character);
    CachedEntity charGroup = service.getCharacterGroup();
    if (service.setAllowMergeRequests(charGroup)) {
        // property was updated by the service. Save group and update the HTML.
        ds.put(charGroup);
        updateHtml("#grpRequestsAllow", "<a id='grpRequestsDisallow' onclick='groupMergeRequestsDisallow(event, " + charGroup.getId() + ")'>Disallow Merge Requests</a>");
    } else {
        if (service.characterHasGroup() == false)
            throw new UserErrorMessage("Character does not belong to a group!");
        if (service.isCharacterGroupAdmin() == false)
            throw new UserErrorMessage("Character is not an admin of this group!");
        throw new UserErrorMessage("Unexpected error allowing merge requests! Please contact a dev.");
    }
}

[Buggy Hunk]
updateHtml("#grpRequestsAllow", "<a id='grpRequestsDisallow' onclick='groupMergeRequestsDisallow(event, " + charGroup.getId() + ")'>Disallow Merge Requests</a>");

[Patch]
updateHtml("#mergeRequestAllow", "<a id='mergeRequestDisallow' onclick='groupMergeRequestsDisallow(event)'>Disallow Merge Requests</a>");