Language: Java
Label: safe
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
    public static boolean validate(String name) {
        if (name == null || name.length() > 10_000) {
            return false;
        }
        Matcher m = PATTERN.matcher(name.toLowerCase());
        return m.find();
    }