code: public boolean isExist(String property) {
  		try {
  			new ValueExpression(property).evaluate(node);
  		} catch (MissingNodeException e) {
  			return false;
  		}
  		return true;
  	}
docs: Checks if property exist in the JsonNode
  
  @param property
  JSON property
  @return Returns the value for the passed property