[CLATJ#23] Close the file descriptor manually
ParcelFileDescriptor rely on garbage collection to close handler.
When there is any error during starting clat or quick on/off
IPv6 only network, the file descriptor may not be able to be closed
before next clatStart is called. This may be problematic. For
example, the same v4- tun interface has not closed yet and clatStart
has been called again.
Test: connect/disconnect to IPv6 only network and ping 8.8.8.8
repeat 10 times
Change-Id: I8e1c66206dc221827a039213ecc86d5cbd777dff
1 file changed