Function argument treated as a mutable instance field in HttpServlet (squid S2226

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import java.util.function.Function;
import javax.servlet.http.HttpServlet;

public class Servlet extends HttpServlet {
  private static final Function<Integer, Integer> SOME_FUN = param -> 1;

param is reported as a mutable instance field.

Hi, Thanks for the feedback, this is indeed a false positive : Ticket created to handle it :