Open new asset bundle in a Java plugin

The Android map plugin I am bulding uses meteor assets as marker image. I open them with context.getResources().getAssets().open(filePath); File paths are like www/application/app/icons/xxx.png
But I can only access the initial bundle. When a new assets bundle is pushed, the plugins still displays the old assets.
It seems logic to me because assets are served through local URLs. But how to open them when you are in a native plugin? poke @martijnwalraven