Programmatically determining the cause of IOException?

Question

Is there any way to programmatically differentiate between what caused an IOException? For example Java will throw an IOException, if there was an error during writing. How can I tell, if it's something like access violation, if the Disk is out of free space, if someone disconnected the the network drive, or other things?

I can't really parse the Message since, there does not seem to be any standardized message format, Sun (or Oracle now I guess) doesn't seem to have any sort of standardized format.

(I need to use Java to fix a very broken system at work.)

Answer 1

Unfortunately Java has no equivalent of .NET's System.Runtime.InteropServices.Marshal.GetHRForException(). You tell what kind of I/O error it was only if the exception is an instance of a subclass, e.g. FileNotFoundException.