code: public List<String> getTempResourceRoots() {
  		final List<String> tmp = this.tmpResources == null ? Collections.emptyList() : this.tmpResources;
  		this.tmpResources = null;
  		return tmp;
  	}
docs: Replies the temprary root folders for resources.
  
  <p>The temporary resources are forgiven as soon as this function is called.
  
  @return the root folders.