How is it different to declare a java interface method signature as final and non final

How is it different from declaring a method signature as final and non final in a java interface?

int setName(String name);

int setName(final String name);

Solution

Section 8.4.1 of the Java language specification 1. It is allowed to declare parameters in any method declaration (including parameters in the interface) as final However, since this will not affect the signature of the method, declaring the parameters of the abstract function as final will not have any impact Since all methods in the interface are implicitly abstract, both variants are equivalent