Markus "guruz" Goetz

(Part 1)

I had problems with moving files after their downloading has been finished. These problems did not occur on Unix-like operating systems like my OS X and Linux but only with Windows. I just was not able to move the file with file.renameTo of the Java API.

After some researching on the web and especially the Sun forums I saw that I am not alone with this problem. The solution is stupid but logical: Before using file.delete() or file.renameTo():

• Of course, make sure to close the file
• Call System.gc() and then System.runFinalization(). Sleep a second and run System.gc() again. This makes sure that the Sun Java VM really closes the file and frees resources associated with it.
• For temporary files, also use file.deleteOnExit()