Generics assignment

[Anup Om]

   

class A{}

class Test{
	public static <T extends A> T toList(T a, T b){
		
		A x = a;  // Line 1
		return x;
	}
	
}

Why can't I do the assignment at Line 1? a, which is of type <T extends A> can't be assigned to a variable of type A. why?

Thanks in advance for help.

EDIT After seeing Greg's reply: I added definition of class A.

[Greg Charles]

I'm a little confused by your use of generics with a static, but I think the issue is you need to tell it what A is. So if you changed it to:

  
public static <T extends A,A> T toList(T a, T b) {
        A x = a;
        return (T)x;
    }

then it should work.

[Rob Spoor]

When I try that code the assignment works just fine. The return is the only line that fails to compile, and that's logical. T can be a subclass of A, it does not need to be A itself.