how to create a List<String> class object

Question

List<String> list = mock(List<String>.class);

here is a invalid syntax，how to pass a List<String> type to mock()?

I thought all parametrized classes (like List<whatever>) only differ at compile time, and in run time it's just List, due to type erasure? So, what you need is syntactically List.class; no idea how do you pass the parametrization information to your mock. — 9000
– 9000, Commented May 5, 2012 at 5:25
You should state in the question that you are using mockito. — Behe
– Behe, Commented May 5, 2012 at 7:14

Jim Garrison · Accepted Answer · 2012-05-05 05:25:14Z

6

Short answer is you can't. At runtime it's just List.class due to type erasure. If your mocking framework needs to know the type parameter there must be a different way to pass it in.

answered May 5, 2012 at 5:25

Jim Garrison

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Jim Garrison Over a year ago

You don't. Right on the Mockito front page is an example of mocking LinkedList. It uses just LinkedList.class without any type parameter.

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