List<Map<String, String>> vs List<? extends Map<String, String>>
https://stackoverflow.com/questions/9810445/listmapstring-string-vs-list-extends-mapstring-string
WEBMar 22, 2012 · 131. Is there any difference between. List<Map<String, String>> and. List<? extends Map<String, String>> ? If there is no difference, what is the benefit of using ? extends? java. generics. inheritance. polymorphism. edited Jun 12, 2012 at 13:26. Peter Mortensen. 31.1k 22 109 132. asked Mar 21, 2012 at 18:15. Eng.Fouad. 116k 73 320 421. 2.
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