docs: private static Expression getExpression(String expression) {
  		if (isTemplate(expression)) {
  			logger.warn("#{...} syntax is not required for this run-time expression "
  					+ "and is deprecated in favor of a simple expression string");
  			return new SpelExpressionParser().parseExpression(expression, PARSER_CONTEXT);
  		}
  		return new SpelExpressionParser().parseExpression(expression);
  	}