automatically detect class to mock

src/main/java/org/mockito/Mockito.java

@@ -1901,6 +1901,23 @@ public class Mockito extends ArgumentMatchers {
      */
     public static final Answer<Object> RETURNS_SELF = Answers.RETURNS_SELF;
 
+    /**
+     * Creates mock object of requested class or interface.
+     * <p>
+     * See examples in javadoc for {@link Mockito} class
+     *
+     * @param reified don't pass any values to it. It's a trick to detect the class/interface you want to mock.
+     * @return mock object
+     */
+    public static <T> T mock(T... reified) {
+        if (reified.length > 0) {
+            throw new IllegalArgumentException(
+                    "Please don't pass any values here. Java will detect class automagically.");
+        }
+        Class<T> classToMock = (Class<T>) reified.getClass().getComponentType();
+        return mock(classToMock, withSettings());
+    }
+
     /**
      * Creates mock object of given class or interface.
      * <p>

src/test/java/org/mockito/MockitoTest.java

@@ -133,4 +133,12 @@ public void shouldStartingMockSettingsContainDefaultBehavior() {
         // when / then
         assertThat(settings.getDefaultAnswer()).isEqualTo(Mockito.RETURNS_DEFAULTS);
     }
+
+    @Test
+    @SuppressWarnings({"DoNotMock", "DoNotMockAutoValue"})
+    public void automaticallyDetectsClassToMock() {
+        List<String> mock = Mockito.mock();
+        Mockito.when(mock.size()).thenReturn(42);
+        assertThat(mock.size()).isEqualTo(42);
+    }
 }

subprojects/kotlinTest/src/test/kotlin/org/mockito/kotlin/InlineClassTest.kt

@@ -339,4 +339,14 @@ class InlineClassTest {
 
         verify(mock).returnsResult()
     }
+
+    @Test
+    @SuppressWarnings("DoNotMock", "DoNotMockAutoValue")
+    fun automaticallyDetectsClassToMock() {
+        val mock: WithResult = mock()
+
+        `when`(mock.returnsResult()).thenReturn(Result.success("OK"))
+
+        assertEquals("OK", mock.returnsResult().getOrNull())
+    }
 }