@Override
    public Class<? extends AssetProcessor> getProcessorType() {
        return CloneableAssetProcessor.class;
    }
Used to load model files, such as OBJ or Blender models.
This uses cloneable smart asset management, so that when all clones of
this model become unreachable, the original asset is purged from the cache,
allowing textures, materials, shaders, etc referenced by the model to
become collected.

@author Kirill Vainer
jme3-core/src/main/java/com/jme3/asset/ModelKey.java