gistfile1.java

            // loop until tripped, broken, interrupted, or timed out
            for (;;) {
                try {
                    if (!timed)
                        trip.await();
                    else if (nanos > 0L)
                        nanos = trip.awaitNanos(nanos);
                } catch (InterruptedException ie) {
                    if (g == generation && ! g.broken) {
                        breakBarrier();
  		throw ie;
		    } else {
			// We're about to finish waiting even if we had not
			// been interrupted, so this interrupt is deemed to
			// "belong" to subsequent execution.
			Thread.currentThread().interrupt();
		    }