From javadoc we know:Class Object is the root of the class hierarchy. Every class has Object as a superclass. All objects, including arrays, implement the methods of this class.The List<? super Object>
means what?
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TongChen
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[Mightbe Helpful](https://stackoverflow.com/questions/4343202/difference-between-super-t-and-extends-t-in-java) – Dinesh Kondapaneni Oct 11 '19 at 09:21
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https://stackoverflow.com/questions/4343202/difference-between-super-t-and-extends-t-in-java check this, it explains what you are asking – jpganz18 Oct 11 '19 at 09:24
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5Logically `List super Object>` must mean the same as `List – Ole V.V. Oct 11 '19 at 09:27
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@jpganz18 thank you,the question contains more details. – TongChen Oct 14 '19 at 02:09