src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java

*** 378,388 ****
                  // clause will notice that the channel has been closed and
                  // throw an appropriate exception (AsynchronousCloseException
                  // or ClosedByInterruptException) if necessary.
                  //
                  // *There is A fourth possibility. implCloseSelectableChannel()
!                 // invokes nd.preClose(), signals reader/writer thred and quickly
                  // moves on to nd.close() in kill(), which does a real close.
                  // Then a third thread accepts a new connection, opens file or
                  // whatever that causes the released "fd" to be recycled. All
                  // above happens just between our last isOpen() check and the
                  // next kernel read reached, with the recycled "fd". The solution
--- 378,388 ----
                  // clause will notice that the channel has been closed and
                  // throw an appropriate exception (AsynchronousCloseException
                  // or ClosedByInterruptException) if necessary.
                  //
                  // *There is A fourth possibility. implCloseSelectableChannel()
!                 // invokes nd.preClose(), signals reader/writer thread and quickly
                  // moves on to nd.close() in kill(), which does a real close.
                  // Then a third thread accepts a new connection, opens file or
                  // whatever that causes the released "fd" to be recycled. All
                  // above happens just between our last isOpen() check and the
                  // next kernel read reached, with the recycled "fd". The solution