Program: 17493
Project: 17493
Buggy source:
@SuppressLint({"String_Node_Str","String_Node_Str"}) protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  if (hasActionBar()) {
    ActionBar actionBar=getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
    actionBar.setListNavigationCallbacks(new ArrayAdapter<Topic>(this,android.R.layout.simple_spinner_dropdown_item,Session.getInstance().getTopics()){
      @Override public View getView(      int position,      View convertView,      ViewGroup parent){
        View view=super.getView(position,convertView,parent);
        ((TextView)view).setTextColor(Color.WHITE);
        return view;
      }
      @Override public View getDropDownView(      int position,      View convertView,      ViewGroup parent){
        View view=super.getDropDownView(position,convertView,parent);
        ((TextView)view).setTextColor(Color.WHITE);
        return view;
      }
    }
,new ActionBar.OnNavigationListener(){
      @Override @SuppressWarnings("String_Node_Str") public boolean onNavigationItemSelected(      int itemPosition,      long itemId){
        Topic topic=Session.getInstance().getTopics().get(itemPosition);
        Session.getInstance().setTopic(topic);
        ((LoadAllAdapter<Article>)getListAdapter()).reload();
        return true;
      }
    }
);
    actionBar.setSelectedNavigationItem(Session.getInstance().getTopics().indexOf(Session.getInstance().getTopic()));
  }
  setTitle(null);
  getListView().setDivider(null);
  setListAdapter(new LoadAllAdapter<Article>(this,R.layout.uv_text_item,new ArrayList<Article>()){
    @Override protected void loadPage(    int page,    Callback<List<Article>> callback){
      Topic topic=Session.getInstance().getTopic();
      if (topic == Topic.ALL_ARTICLES) {
        Article.loadAll(callback);
      }
 else {
        Article.loadForTopic(topic.getId(),callback);
      }
    }
    @Override protected void customizeLayout(    View view,    Article model){
      TextView text=(TextView)view.findViewById(R.id.uv_text);
      TextView text2=(TextView)view.findViewById(R.id.uv_text2);
      text.setText(model.getTitle());
      if (Session.getInstance().getTopic() == Topic.ALL_ARTICLES && model.getTopicName() != null) {
        text2.setVisibility(View.VISIBLE);
        text2.setText(model.getTopicName());
      }
 else {
        text2.setVisibility(View.GONE);
      }
    }
  }
);
  getListView().setOnItemClickListener(new AdapterView.OnItemClickListener(){
    @Override public void onItemClick(    AdapterView<?> parent,    View view,    int position,    long id){
      Article article=(Article)getListAdapter().getItem(position);
      Session.getInstance().setArticle(article);
      startActivity(new Intent(TopicActivity.this,ArticleActivity.class));
    }
  }
);
  Babayaga.track(Babayaga.Event.VIEW_TOPIC,Session.getInstance().getTopic().getId());
}

Fixed version (ground truth):
@SuppressLint({"String_Node_Str","String_Node_Str"}) protected void onCreate(Bundle savedInstanceState){
  super.onCreate(savedInstanceState);
  if (hasActionBar()) {
    ActionBar actionBar=getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
    SpinnerAdapter topicAdapter=new ArrayAdapter<Topic>(actionBar.getThemedContext(),android.R.layout.simple_spinner_dropdown_item,Session.getInstance().getTopics());
    actionBar.setListNavigationCallbacks(topicAdapter,new ActionBar.OnNavigationListener(){
      @Override @SuppressWarnings("String_Node_Str") public boolean onNavigationItemSelected(      int itemPosition,      long itemId){
        Topic topic=Session.getInstance().getTopics().get(itemPosition);
        Session.getInstance().setTopic(topic);
        ((LoadAllAdapter<Article>)getListAdapter()).reload();
        return true;
      }
    }
);
    actionBar.setSelectedNavigationItem(Session.getInstance().getTopics().indexOf(Session.getInstance().getTopic()));
  }
  setTitle(null);
  getListView().setDivider(null);
  setListAdapter(new LoadAllAdapter<Article>(this,R.layout.uv_text_item,new ArrayList<Article>()){
    @Override protected void loadPage(    int page,    Callback<List<Article>> callback){
      Topic topic=Session.getInstance().getTopic();
      if (topic == Topic.ALL_ARTICLES) {
        Article.loadAll(callback);
      }
 else {
        Article.loadForTopic(topic.getId(),callback);
      }
    }
    @Override protected void customizeLayout(    View view,    Article model){
      TextView text=(TextView)view.findViewById(R.id.uv_text);
      TextView text2=(TextView)view.findViewById(R.id.uv_text2);
      text.setText(model.getTitle());
      if (Session.getInstance().getTopic() == Topic.ALL_ARTICLES && model.getTopicName() != null) {
        text2.setVisibility(View.VISIBLE);
        text2.setText(model.getTopicName());
      }
 else {
        text2.setVisibility(View.GONE);
      }
    }
  }
);
  getListView().setOnItemClickListener(new AdapterView.OnItemClickListener(){
    @Override public void onItemClick(    AdapterView<?> parent,    View view,    int position,    long id){
      Article article=(Article)getListAdapter().getItem(position);
      Session.getInstance().setArticle(article);
      startActivity(new Intent(TopicActivity.this,ArticleActivity.class));
    }
  }
);
  Babayaga.track(Babayaga.Event.VIEW_TOPIC,Session.getInstance().getTopic().getId());
}