/**
* Invoked only once during registration of the listener if there was no data in the conceptual data tree
- * for the supplied path, which was used to register this listener, and after this {@link #onDataTreeChanged}
- * would always be invoked for data changes.
+ * for the supplied path, which was used to register this listener, and after this
+ * {@link #onDataTreeChanged(Collection)} would always be invoked for data changes.
*
* <p>
* Default implementation does nothing and is appropriate for users who do not care about ascertaining