[Demonstration 1]

[Buggy Method]
private void onCheckSoftKeyboardState(final View view) {
    //先主视图布局设置监听，监听其布局发生变化事件
    view.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {

        @Override
        public void onGlobalLayout() {
            //比较主视图布局与当前布局的大小
            int heightDiff = mView.getRootView().getHeight() - view.getHeight();
            if (heightDiff > 100) {
                //大小超过100时，一般为显示虚拟键盘事件
                if (mEditable) {
                    if (mLeftBottomSheetBehavior.getState() == BottomSheetBehavior.STATE_EXPANDED) {
                        mLeftBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
                    }
                    if (mRightBottomSheetBehavior.getState() == BottomSheetBehavior.STATE_EXPANDED) {
                        mRightBottomSheetBehavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
                    }
                } else {
                    //大小小于100时，为不显示虚拟键盘或虚拟键盘隐藏
                    Log.d(TAG, "onGlobalLayout: ");
                }
            }
        }
    });
}

[Buggy Hunk]
if (mEditable) {

[Patch]
if (mEditable && !Utils.isXLargeTablet(getActivity())) {

[Demonstration 2]

[Buggy Method]
@Override
public void onStartListening() {
    super.onStartListening();
    changeState(getState());
}

[Buggy Hunk]
changeState(getState());

[Patch]
keepState(getState());

[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));