/**

* Sample code that very often leads ot a livelock.

*

* TODO make work

*/

public class Livelock {

static class Person {

public final int id;

public int pos;

public Corridor corridor;

public Person(int id, int pos, Corridor corridor) {

this.id = id;

this.pos = pos;

}

public void switchPos() {

this.pos *= -1;

}

public void tryToPass() {

this.pos *= -1;

}

}

static class Corridor {

public Person[] persons;

public Corridor(Person[] persons) {

this.persons = persons;

}

static boolean canPass() {

return persons[0].pos*persons[1].pos < 0;

}

}

public static void main(String[] args) {

Person[] persons = { new Person(0, -1), new Person(0, -1) };

Corridor corridor = new Corridor(persons);

for ( int i = 0; i < 10000; i++ )

{

while ( ! canPass ) {

}

}

}

}