What's wrong with my code?

[geoand]

I have the following code:

Kindly let me know what the problem is. Thank you

[devoxx-24-ai-infused-bot[bot]]

""

[devoxx-24-ai-infused-bot[bot]]

Detected the following screenshots that correspond to code: https://github.com/user-attachments/assets/0660db53-53ec-4ed8-9da3-4b4dbc6e86da ->

public final class Strings {
    public static String sanitize(String value) {
        if (value == null) {
            return null;
        }
        return value.replace("--", "_");
    }
}