Returns a duplicate of this node, i.e., serves as a generic copy constructor
for nodes. The duplicate node has no parent (parentNode is null) and no
user data. User data associated to the imported node is not carried over.
However, if any UserData handlers has been specified along with the
associated data these handlers will be called with the appropriate parameters
before this method returns.
Returns a duplicate of this node, i.e., serves as a generic copy constructor for nodes. The duplicate node has no parent (parentNode is null) and no user data. User data associated to the imported node is not carried over. However, if any UserData handlers has been specified along with the associated data these handlers will be called with the appropriate parameters before this method returns.