Some of the tests in containermanager.linux.runtime failed in Windows due to
'posix:permissions' not supported as initial attribute
We use PosixFilePermission which can be used only with operating systems which are compatibile with POSIX:
A file attribute view that provides a view of the file attributes commonly associated with files on file systems used by operating systems that implement the Portable Operating System Interface (POSIX) family of standards.Operating systems that implement the POSIX family of standards commonly use file systems that have a file owner, group-owner, and related access permissions. Windows unfortunatelly doesn't support POSIX file systems so this is why your code doesn't work.