Someone

public class Test
{
	public static void main(String... args)
	{
		C c = new C();
		c.sayHello();
	}
} 

class A<T> extends T
{

}

class B
{
	public void sayHello()
	{
		System.out.println("Hello");
	}
}

class C extends A<B>
{
	
}