[jdom-interest] Can file for Document be deleted?

[ÁÎÃûѧ]

Sometimes I use an encrypted(by FlowFish) xml file to construct a Document.
Firstly I decrypt the file to a plain .xml file, then extract an instance of
Document from the plain file. Generally, for the sake of security,the plain file
should be deleted. I have done it this way and all does work. But I am not sure
whether the Document instance will be somehow affected under some certain
circumstance unknown to me.