I used the following code to get the path
Path errorFilePath = FileSystems.getDefault().getPath(errorFile);
When I try to move
Disclaimer: I haven't tested this on a normal windows environment.
"\\C:\\" needs to be "C:\\"
final Path errorFilePath = Paths.get(FileSystems.getDefault().getPath(errorFile).toString().replace("\\C:\\","C:\\"));
My Windows box has a Linux-Like environment so I had to change "/C:/" to be "C:\\".
This code was tested to work on a Linux-Like Windows Environment:
final Path errorFilePath = Paths.get(FileSystems.getDefault().getPath(errorFile).toString().replace("/C:/","C:\\"));