Have you ever seen a Java File close() throw an exception?

Question

Has anyone ever seen an exception thrown when calling close method on any closable object?

Answer 1

Yes, it's not that rare, IMHO if you are working with anything other than non-local disk files.

Close() works if at that point your closable is still valid and open. Many things like pipes, remote files, etc., can die prematurely.

In addition, I have seen code that ignores errors on open and write and still tries to close (e.g., in a finally block).