7014948: (zipfs) ZipFileSystem.newFileSystem(Path...) should not throw FileSystemAlreadyExistsException
7015139: (zipfs) ZipPath.delete() should throw DirectoryNotEmptyException when handling "real, non-empty" dir
Zip filesystem provider update
Reviewed-by: alanb
7009092: (zipfs) ZipPath.isSameFile() should always return true if this Path and the given Path are equal
7009085: (zipfs) ZipPath.normalize("/./.") returns null
7009102: (zipfs) ZipPath.toRealPath() should always return absolute path
Zip filesystem provider update
Reviewed-by: alanb