goja-core/src/main/java/goja/core/Validator.java
public static boolean isEmail(String value) {
        String check =
                "^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
        return match(check, Pattern.CASE_INSENSITIVE, value);
    }
public static boolean isEmail(String value) {
        String check =
                "^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
        return match(check, Pattern.CASE_INSENSITIVE, value);
    }
Email validation

@param value value
@return boolean