code: @CheckForNull
      public NodeProperty getNodeProperty(String className)
      {
          for (NodeProperty p: getNodeProperties()) {
              if (p.getClass().getName().equals(className)) {
                  return p;
              }
          }
          return null;      
      }
docs: Gets the property from the given classname or null if the property
  is not configured for this Node.
  
  @param className The classname of the property
  
  @return null if the property is not configured
  
  @since 2.37