Wrong exception thrown?
Alan.Bateman at Sun.COM
Tue Sep 1 01:28:08 PDT 2009
John Hendrikx wrote:
> Exception in thread "Thread-8": java.nio.file.AccessDeniedException:
> c:\Copy\Macros2 -> c:\Copy2\Macros2
> at sun.nio.fs.WindowsFileCopy.move(WindowsFileCopy.java:301)
> at sun.nio.fs.WindowsPath.implMoveTo(WindowsPath.java:1004)
> at sun.nio.fs.AbstractPath.moveTo(AbstractPath.java:201)
> This occurs when moveTo() is called with the arguments indicated +
> I would expect the FileAlreadyExistsException to be thrown. It's not a
> permission issue (and the files are not 'read only').
When the ATOMIC_MOVE option is specified then it is allowed to replace
the target file if it exists. In other words, it is not required to fail
if the target exists. An implementation can't first check if the file
exists because the overall operation must be atomic. One annoyance, as
Andrew suspected, is that Windows returns its equivalent of "access
denied" for both the permission denied case and the case that the target
is a directory. Is C:\Copy2\Macros2 is a directory?
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