Program: 14333
Project: 14333
Buggy source:
private void requestPosts(boolean loadMore){
  if (!isAdded() || WordPress.getCurrentBlog() == null || mIsFetchingPosts) {
    return;
  }
  if (!NetworkUtils.isNetworkAvailable(getActivity())) {
    setRefreshing(false);
    updateEmptyView(EmptyViewMessageType.NETWORK_ERROR);
    return;
  }
  if (WordPress.wpDB.findLocalChanges(WordPress.getCurrentBlog().getLocalTableBlogId(),mIsPage)) {
    return;
  }
  int postCount;
  if (loadMore) {
    postCount=getPostListAdapter().getRemotePostCount() + POSTS_REQUEST_COUNT;
    showLoadMoreProgress();
  }
 else {
    mCanLoadMorePosts=true;
    postCount=POSTS_REQUEST_COUNT;
    setRefreshing(true);
    updateEmptyView(EmptyViewMessageType.LOADING);
  }
  List<Object> apiArgs=new Vector<>();
  apiArgs.add(WordPress.getCurrentBlog());
  apiArgs.add(mIsPage);
  apiArgs.add(postCount);
  apiArgs.add(loadMore);
  mCurrentFetchPostsTask=new ApiHelper.FetchPostsTask(new ApiHelper.FetchPostsTask.Callback(){
    @Override public void onSuccess(    int postCount){
      mCurrentFetchPostsTask=null;
      mIsFetchingPosts=false;
      if (!isAdded()) {
        return;
      }
      setRefreshing(false);
      hideLoadMoreProgress();
      if (postCount == 0) {
        mCanLoadMorePosts=false;
      }
 else       if (postCount == getPostListAdapter().getRemotePostCount() && postCount != POSTS_REQUEST_COUNT) {
        mCanLoadMorePosts=false;
      }
      loadPosts();
    }
    @Override public void onFailure(    ApiHelper.ErrorType errorType,    String errorMessage,    Throwable throwable){
      mCurrentFetchPostsTask=null;
      mIsFetchingPosts=false;
      if (!isAdded()) {
        return;
      }
      setRefreshing(false);
      hideLoadMoreProgress();
      if (errorType != ErrorType.TASK_CANCELLED && errorType != ErrorType.NO_ERROR) {
switch (errorType) {
case UNAUTHORIZED:
          updateEmptyView(EmptyViewMessageType.PERMISSION_ERROR);
        break;
default :
      updateEmptyView(EmptyViewMessageType.GENERIC_ERROR);
    break;
}
}
}
}
);
mIsFetchingPosts=true;
mCurrentFetchPostsTask.execute(apiArgs);
}

Fixed version (ground truth):
private void requestPosts(boolean loadMore){
  if (!isAdded() || WordPress.getCurrentBlog() == null || mIsFetchingPosts) {
    return;
  }
  if (!NetworkUtils.isNetworkAvailable(getActivity())) {
    updateEmptyView(EmptyViewMessageType.NETWORK_ERROR);
    return;
  }
  int postCount;
  if (loadMore) {
    postCount=getPostListAdapter().getRemotePostCount() + POSTS_REQUEST_COUNT;
    showLoadMoreProgress();
  }
 else {
    mCanLoadMorePosts=true;
    postCount=POSTS_REQUEST_COUNT;
    setRefreshing(true);
    updateEmptyView(EmptyViewMessageType.LOADING);
  }
  List<Object> apiArgs=new Vector<>();
  apiArgs.add(WordPress.getCurrentBlog());
  apiArgs.add(mIsPage);
  apiArgs.add(postCount);
  apiArgs.add(loadMore);
  mCurrentFetchPostsTask=new ApiHelper.FetchPostsTask(new ApiHelper.FetchPostsTask.Callback(){
    @Override public void onSuccess(    int postCount){
      mCurrentFetchPostsTask=null;
      mIsFetchingPosts=false;
      if (!isAdded()) {
        return;
      }
      setRefreshing(false);
      hideLoadMoreProgress();
      if (postCount == 0) {
        mCanLoadMorePosts=false;
      }
 else       if (postCount == getPostListAdapter().getRemotePostCount() && postCount != POSTS_REQUEST_COUNT) {
        mCanLoadMorePosts=false;
      }
      loadPosts();
    }
    @Override public void onFailure(    ApiHelper.ErrorType errorType,    String errorMessage,    Throwable throwable){
      mCurrentFetchPostsTask=null;
      mIsFetchingPosts=false;
      if (!isAdded()) {
        return;
      }
      setRefreshing(false);
      hideLoadMoreProgress();
      if (errorType != ErrorType.TASK_CANCELLED && errorType != ErrorType.NO_ERROR) {
switch (errorType) {
case UNAUTHORIZED:
          updateEmptyView(EmptyViewMessageType.PERMISSION_ERROR);
        break;
default :
      updateEmptyView(EmptyViewMessageType.GENERIC_ERROR);
    break;
}
}
}
}
);
mIsFetchingPosts=true;
mCurrentFetchPostsTask.execute(apiArgs);
}