trouble in usage of the generic methods

I have a method declared as below

<T> T getA开发者_如何学运维dapter(Adaptable adaptable, Class<T> extensionInterface);

and I'm calling it with below argumants

adapterManager.getAdapter(new AWScoreAdapterImpl(null), AWScoreAdapter.class);

Can someone help me understand why the above line is causing the below compile time error

The method getAdapter(Adaptable, Class) in the type AdapterManager is not applicable for the arguments (AWScoreAdapterImpl, Class)

It's nothing to do with generics - your AWScoreAdapterImpl isn't of type Adaptable. Either implement its interface, or extend it if it's a class.

Are you able to post your class definitions here? In particular, Adaptable, AWScoreAdapterImpl and AdapterManager.