Java: how do I get a class literal from a generic type?

Posted by Tom on Stack Overflow See other posts from Stack Overflow or by Tom
Published on 2010-03-05T23:33:08Z Indexed on 2010/03/08 4:36 UTC
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Typically, I've seen people use the class literal like this:

Class<Foo> cls = Foo.class;

But what if the type is generic, e.g. List? This works fine, but has a warning since List should be parameterized:

Class<List> cls = List.class

So why not add a <?>? Well, this causes a type mismatch error:

Class<List<?>> cls = List.class

I figured something like this would work, but this is just a plain ol' a syntax error:

Class<List<Foo>> cls = List<Foo>.class

How can I get a Class<List<Foo>> statically, e.g. using the class literal?

I could use @SuppressWarnings("unchecked") to get rid of the warnings caused by the non-parameterized use of List in the first example, Class<List> cls = List.class, but I'd rather not.

Any suggestions?

Thanks!

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