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  1. import java.util.*;
  2.  
  3. class Ideone
  4. {
  5. 	public static void main (String[] args) throws java.lang.Exception
  6. 	{
  7. 		try
  8. 		{
  9. 			// Throws
  10. 			List.of("Foo").sort(Comparator.naturalOrder());
  11. 		}
  12. 		catch(Exception e)
  13. 		{
  14. 			e.printStackTrace(System.out);
  15. 		}
  16.  
  17. 		// Does not throw
  18. 		Collections.singletonList("Foo").sort(Comparator.naturalOrder());
  19. 	}
  20. }
Success #stdin #stdout 0.06s 32468KB
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stdin
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Standard input is empty
stdout
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java.lang.UnsupportedOperationException
	at java.base/java.util.ImmutableCollections.uoe(ImmutableCollections.java:72)
	at java.base/java.util.ImmutableCollections$AbstractImmutableList.sort(ImmutableCollections.java:111)
	at Ideone.main(Main.java:10)
https://ideone.com/Vbbgdo
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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