set contains(obj) returns true but remove(obj) fails.

[bytor99999]

OK, this is related to my vertex question. But this looks like the brunt of my problem.

In my User object I have a method to remove the ItemUserSignedUpToBringToEvent from its Set collection. I have implemented ItemUserSignedUpToBringToEvent's equals method to compare nodeIds.

public boolean removeItemSignedUpFor(ItemUserSignedUpToBringToEvent itemSignedUp) {
        return (itemsSignedUpFor.contains(itemSignedUp) &&
                itemsSignedUpFor.remove(itemSignedUp));
    }

contains call returns true, but the call to remove fails. Why???

Here is my equals and hashcode for the ItemUserSignedUpToBringToEvent

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        ItemUserSignedUpToBringToEvent signedUpItem = (ItemUserSignedUpToBringToEvent) o;
        if (nodeId == null) return super.equals(o);
        return nodeId.equals(signedUpItem.nodeId);

    }

    @Override
    public int hashCode() {
        return nodeId != null ? nodeId.hashCode() : super.hashCode();
    }

In stepping through code, the Spring Data Neo4J class ManagedFieldAccessorSet remove method is returning false.

@Override
    public boolean remove(Object o) {
        if (delegate.remove(o)) {
            update();
            return true;
        }
        return false;
    }

Thanks

Mark