+1, close() is the final thing you do on objects based on the Closeable
interface, I am surprised the javadoc for Workbook states it differently.
If we want to have a way to "release" resources while still having the
object available, we should use a differently named method for this as
close() is
This seems a little counterintuitive to me. I would expect that once a Workbook
is closed, it cannot be used. Closing should be the last thing you do with a
Workbook. I would be more inclined to fix the documentation than to allow
differing behavior between Workbooks read from the file system, a
