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  1. import java.util.List;
  2.  
  3. class Ideone {
  4.  
  5. 	static abstract class A {
  6.  
  7. 		abstract List m1();
  8.  
  9. 		abstract List<List> m2();
  10.  
  11. 	}
  12.  
  13. 	static class B extends A {
  14.  
  15. 		List<?> m1() {
  16. 			return null;
  17. 		}
  18.  
  19. 		List<List> m2() {
  20. 			return null;
  21. 		}
  22.  
  23. 	}
  24.  
  25. 	public static void main(String[] args) {
  26. 		System.out.println("Yo.");
  27. 	}
  28.  
  29. }
  30.  
Success #stdin #stdout 0.12s 320576KB
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Standard input is empty
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Yo.
https://ideone.com/1kDT21
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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