code: public boolean isNodeType(String nodeTypeName)
     {
        try
        {
           return nodeTypeDataManager.isNodeType(locationFactory.parseJCRName(nodeTypeName).getInternalName(),
              nodeTypeData.getName());
        }
        catch (RepositoryException e)
        {
           throw new RuntimeException("Wrong nodetype name " + e, e);
        }
     }
docs: {@inheritDoc}