public String validate()

in saml-authentication-server/src/main/java/jetbrains/buildServer/auth/saml/plugin/utils/SpelExpressionExecutor.java [13:20]


    public String validate(String expressionString) {
        try {
            parser.parseExpression(expressionString);
            return null;
        } catch (ParseException e) {
            return e.getMessage();
        }
    }