@Target(value=FIELD) @Retention(value=RUNTIME) @Deprecated public static @interface MockitoAnnotations.Mock
When @Mock annotation was implemented as an inner class then users experienced problems with autocomplete features in IDEs. Hence @Mock was made a top-level class.
How to fix deprecation warnings? Typically, you can just search: import org.mockito.MockitoAnnotations.Mock; and replace with: import org.mockito.Mock;
If you're an existing user then sorry for making your code littered with deprecation warnings. This change was required to make Mockito better.