Question regarding AAssetManager_openDir

[seal2002]

Hello,

I use the function AAssetManager_openDir to check folder inside the AAB file, however, I found that function always return a pointer is not NULL even AAB doesn't contain any folder. 

Example:
Asset texDir = AAssetManager_openDir(assetManager, "Texture")

if(texDir) {

__android_log_info(...) // always has message

}

I search around but have no more information, could someone can confirm that is expected behavior?
Thanks,
Hai