Hide Utility Class Constructor : Utility classes should not have a public or default constructor

Question

I am getting this warning on Sonar.I want solution to remove this warning on sonar. My class is like this :

public class FilePathHelper {
    private static Stri         


        

Answer 1

I don't know Sonar, but I suspect it's looking for a private constructor:

private FilePathHelper() {
    // No-op; won't be called
}

Otherwise the Java compiler will provide a public parameterless constructor, which you really don't want.

(You should also make the class final, although other classes wouldn't be able to extend it anyway due to it only having a private constructor.)