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I am trying to read input from a socket line by line in multiple threads. How can I interrupt readLine() so that I can gracefully stop the thread that it’s blocking?
EDIT (bounty): Can this be done without closing the socket?
Close the socket on the interrupting thread. This will cause an exception to be thrown on the interrupted thread.
For more information on this and other concurrency issues, I highly recommend Brian Goetz’s book “Java Concurrency in Practice”.