Previously AsynchronousSocketCloseMonitor was used to handle socket interruption on close. To support the same for FileChannel it has been renamed to AsynchronousCloseMonitor. The Java class was already called this. FileInputStream, FileOutputStream, RandomAccessFile will now throw IOException if a connection is closed by another thread during read. Thread.interrupt() continues to have no effect on streams. FileChannel will now throw AsynchronousCloseException during reads and writes if the file is closed, per the documentation. FileChannel will now throw ClosedByInterruptException during reads and writes if the thread reading/writing is interrupted. Note: FileChannel.lock() will probably still not not throw AsynchronousCloseException, though it probably should. This change also has impact on external/conscrypt and frameworks/base. Change-Id: I37de3e7d1a005a73821221e6156d10b95c595d7a Bug: 13927110