final Phaser b = new pt.ul.jarmus.ext.Phaser(1);
JArmus.register(a);
JArmus.register(b);
b.arrive();
a.arriveAndAwaitAdvance();
b.awaitAdvance(0);
}
/**
* Found while debugging {@link RegressionTests#illegalStateClearBlocked()}
* Same example, but with avoidance, instead of detection.