Summary: Ignore NoSuchFileExceptions as the store might have been deleted subsequent to creation of the FileStore iterator which is not dynamic.
Reviewed-by: alanb

Reviewed-by: dholmes

Reviewed-by: chegar

Reviewed-by: chegar, sherman

Reviewed-by: xdono

6979526: (file) java/nio/file/FileStore/Basic.java fails if the same file system is mounted more than once
Reviewed-by: kevinw, forax

Reviewed-by: darcy, weijun

6873621: (file) FileStore.supportsFileAttributeView(Class<FileAttributeView> type) returns wrong result
Reviewed-by: andrew

4313887: New I/O: Improved filesystem interface
4607272: New I/O: Support asynchronous I/O
Reviewed-by: sherman, chegar