container/activities/src/main/java/org/mobicents/slee/runtime/activity/ActivityContextFactoryCacheData.java
@SuppressWarnings("unchecked")
	public Set<ActivityContextHandle> getActivityContextHandles() {
		final Node node = getNode();
		return node != null ? node.getChildrenNames() : Collections.emptySet();
	}
@SuppressWarnings("unchecked")
	public Set<ActivityContextHandle> getActivityContextHandles() {
		final Node node = getNode();
		return node != null ? node.getChildrenNames() : Collections.emptySet();
	}
Retrieves a set containing all activity context handles in the factory's
cache data

@return