Program: 14208
Project: 14208
Buggy source:
public String addCategory(final String category_name,String category_slug,String category_desc,int parent_id){
  String returnString="String_Node_Str";
  updateSelectedCategoryList();
  mListScrollPositionManager.saveScrollOffset();
  Map<String,Object> struct=new HashMap<String,Object>();
  struct.put("String_Node_Str",category_name);
  struct.put("String_Node_Str",category_slug);
  struct.put("String_Node_Str",category_desc);
  struct.put("String_Node_Str",parent_id);
  mClient=XMLRPCFactory.instantiate(blog.getUri(),blog.getHttpuser(),blog.getHttppassword());
  Object[] params={blog.getRemoteBlogId(),blog.getUsername(),blog.getPassword(),struct};
  Object result=null;
  try {
    result=mClient.call(ApiHelper.Methods.NEW_CATEGORY,params);
  }
 catch (  XMLRPCException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
catch (  IOException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
catch (  XmlPullParserException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
  if (result != null) {
    int category_id=Integer.parseInt(result.toString());
    final String new_category_name=getCanonicalCategoryName(category_id);
    if (new_category_name == null) {
      return returnString;
    }
    final Activity that=this;
    if (!new_category_name.equals(category_name)) {
      mHandler.post(new Runnable(){
        @Override public void run(){
          Toast.makeText(that,String.format(String.valueOf(getText(R.string.category_automatically_renamed)),category_name,new_category_name),Toast.LENGTH_LONG).show();
        }
      }
);
    }
    WordPress.wpDB.insertCategory(blog.getLocalTableBlogId(),category_id,parent_id,new_category_name);
    returnString="String_Node_Str";
    mSelectedCategories.add(new_category_name);
  }
  return returnString;
}

Fixed version (ground truth):
public String addCategory(final String category_name,String category_slug,String category_desc,int parent_id){
  String returnString="String_Node_Str";
  updateSelectedCategoryList();
  mListScrollPositionManager.saveScrollOffset();
  Map<String,Object> struct=new HashMap<String,Object>();
  struct.put("String_Node_Str",category_name);
  struct.put("String_Node_Str",category_slug);
  struct.put("String_Node_Str",category_desc);
  struct.put("String_Node_Str",parent_id);
  mClient=XMLRPCFactory.instantiate(blog.getUri(),blog.getHttpuser(),blog.getHttppassword());
  Object[] params={blog.getRemoteBlogId(),blog.getUsername(),blog.getPassword(),struct};
  Object result=null;
  try {
    result=mClient.call(Method.NEW_CATEGORY,params);
  }
 catch (  XMLRPCException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
catch (  IOException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
catch (  XmlPullParserException e) {
    AppLog.e(AppLog.T.POSTS,e);
  }
  if (result != null) {
    int category_id=Integer.parseInt(result.toString());
    final String new_category_name=getCanonicalCategoryName(category_id);
    if (new_category_name == null) {
      return returnString;
    }
    final Activity that=this;
    if (!new_category_name.equals(category_name)) {
      mHandler.post(new Runnable(){
        @Override public void run(){
          Toast.makeText(that,String.format(String.valueOf(getText(R.string.category_automatically_renamed)),category_name,new_category_name),Toast.LENGTH_LONG).show();
        }
      }
);
    }
    WordPress.wpDB.insertCategory(blog.getLocalTableBlogId(),category_id,parent_id,new_category_name);
    returnString="String_Node_Str";
    mSelectedCategories.add(new_category_name);
  }
  return returnString;
}