public Interface Interruptible

Invoked by Thread.interrupt when the given Thread is interrupted. Thread.interrupt invokes this method while holding the given Thread's interrupt lock. This method is also invoked by AbstractInterruptibleChannel when beginning an I/O operation with the current thread's interrupted status set. This method must not block.

Invoked by Thread.interrupt after releasing the Thread's interrupt lock. It may also be invoked by AbstractInterruptibleChannel or AbstractSelector when beginning an I/O operation with the current thread's interrupted status set, or at the end of an I/O operation when any thread doing I/O on the channel (or selector) has been interrupted. This method closes the channel (or wakes up the Selector) to ensure that AsynchronousCloseException or ClosedByInterruptException is thrown. This method is required to be idempotent.