code: public Node findOrCreateChild( Node parent,
                                     String name,
                                     String nodeType ) throws RepositoryException {
          return findOrCreateNode(parent, name, nodeType, nodeType);
      }
docs: Get or create a node with the specified node and node type under the specified parent node.
  
  @param parent the parent node. may not be null
  @param name the name of the child node. may not be null
  @param nodeType the node type. may be null
  @return the existing or newly created child node
  @throws RepositoryException