How to get rid of the error
"erasure of method is the same as another method in type"

without changing methods name

public static List<String> convert(List<String> list, Function<String, String> convertFunction) {
            
            return list;
//proper code
            
        }
        
        public static List<Map<String, String>> convert(List<Map<String, String>> list, Function<String, String> convertFunction) {
            return list;
//proper code
        }

>Solution :

You can’t have two methods with parameters which differ from one another only with their generic type because List<String> and List<Map<String, String>> exist only at compile time.

At runtime, there would be List<Object> and Function<Object, Object>.

That’s how generics were implemented in Java, and you can’t do anything with it.

But you can combine these two methods in one:

public static <T, R> List<R> convert(List<T> list,
                                     Function<T, R> convertFunction) {
    
    return foo;
}