maffe commented on issue #4709:
URL: https://github.com/apache/netbeans/issues/4709#issuecomment-2356402010
> I've found another case, similar to the previous one, in which the
visibility of a class member affects the result of this type of check. However,
this time it affects a method parameter instead of a local variable. Look at
this:
>
> ```java
> public class Main {
>
> public Main() {
> checkParameter(1);
> }
>
> public static void checkParameter(int myParameter) {
> // ^^^ This variable should be marked
as unused,
> // but it isn't.
> }
>
> }
> ```
>
> Now, if you change the visibility of the method from `public` to
`private`, NetBeans correctly detects that `myParameter` is not used at all in
the body of the method.
I think it is intentional to not mark unused parameters in public methods
since removing them would change your public API, breaking code using that
method.
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