code: protected final void setControllerPath(String path) {
  		requireNonNull(path, "Global path cannot be change to 'null'");
  
  		if (!"".equals(path) && !"/".equals(path)) {
  			this.controllerPath = pathCorrector.apply(path);
  		}
  	}
docs: Creates a resource part of the path unified for all routes defined in the inherited class
  
  @param path resource path of all defined class
  @throws NullPointerException whether {@code path} is {@code null}