code: public static Treenode findNode(Treeview tree, String path, boolean create, MatchMode matchMode) {
          return findNode(tree, path, create, Treenode.class, matchMode);
      }
docs: Returns the tree item associated with the specified \-delimited path.
  
  @param tree Tree to search.
  @param path \-delimited path to search.
  @param create If true, tree nodes are created if they do not already exist.
  @param matchMode The match mode.
  @return The tree item corresponding to the specified path, or null if not found.