DEADLOCK:

private static class Resource {

public int value;

}

private Resource resourceA = new Resource();

private Resource resourceB = new Resource();

public int read() {

synchronized(resourceA) { // May deadlock here

synchronized(resourceB) {

return resourceB.value + resourceA.value;

}

}

}

public void write(int a, int b) {

synchronized(resourceB) { // May deadlock here

synchronized(resourceA) {

resourceA.value = a;

resourceB.value = b;

}

}

}

}