[Spatial Partition] Error when run App.java

[tiennm99]

When run App.java, there are some problems:

• ConcurrentModificationException happen:

Exception in thread "main" java.util.ConcurrentModificationException
	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1597)
	at java.base/java.util.HashMap$ValueIterator.next(HashMap.java:1625)
	at com.iluwatar.spatialpartition.Bubble.handleCollision(Bubble.java:69)
	at com.iluwatar.spatialpartition.App.lambda$noSpatialPartition$0(App.java:75)
	at java.base/java.util.HashMap.forEach(HashMap.java:1421)
	at com.iluwatar.spatialpartition.App.noSpatialPartition(App.java:70)
	at com.iluwatar.spatialpartition.App.main(App.java:125)

• Some logs don't work, just log "Bubble"
• Some logs don't use Slf4j formatting anchor {}.

[tiennm99]

I'm working on it

[0equalsto1]

1: at line no 66(var bubblesToCheck = bubbles.values();) and at ln :70 you are iterating it (bubbles.forEach) and inside handleCollision() method you are updating the same map(bubbles,inside pop() allBubbles.remove(this.id);) .
Thats why once you get the iterator from a collection you can not modify the collection(if map changes the babbles.values() also affected).
2:same for withSpatialPartition() method LN:93 bubbles.forEach
3: same for noSpatialPartition() method LN 70:bubbles.forEach