Parent

All children of this parent

All children of this parent of type type (including its synonyms), or all children if type is null.

All descendants of this parent of type type (including its synonyms) in depth-first order, or all descendants if type is null. Iterating over the descendants while modifying the topology of the tree will produce a ConcurrentModificationException (non-topological modifications are permissible). Multiple parentage will result in duplicate values

Iterates over children