canonicalFile2
A canonical pathname is both absolute and unique. The precise definition of canonical form is system-dependent.
This method first converts this pathname to absolute form if necessary and then maps it to its unique form in a system-dependent way. This typically involves removing redundant names such as . and .. from the pathname, resolving symbolic links (on Unix platforms), and converting drive letters to a standard case (on Windows platforms).
Return
The canonical pathname File of this abstract pathname.
See also
Throws
If interaction with the filesystem resulted in failure, such as a security exception.
UnsupportedOperationException
On Kotlin/JS-Browser.