Remove redundant MockitoAnnotations.initMocks()

See gh-20601

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/endpoint/ExposeExcludePropertyEndpointFilterTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,9 +16,7 @@
 
 package org.springframework.boot.actuate.autoconfigure.endpoint;
 
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.MockitoAnnotations;
 
 import org.springframework.boot.actuate.endpoint.EndpointFilter;
 import org.springframework.boot.actuate.endpoint.EndpointId;
@@ -40,11 +38,6 @@ class ExposeExcludePropertyEndpointFilterTests {
 
 	private ExposeExcludePropertyEndpointFilter<?> filter;
 
-	@BeforeEach
-	void setup() {
-		MockitoAnnotations.initMocks(this);
-	}
-
 	@Test
 	void createWhenEndpointTypeIsNullShouldThrowException() {
 		assertThatIllegalArgumentException()

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/health/HealthEndpointSupportTests.java

@@ -20,9 +20,7 @@ import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.MockitoAnnotations;
 
 import org.springframework.boot.actuate.endpoint.SecurityContext;
 import org.springframework.boot.actuate.endpoint.http.ApiVersion;
@@ -59,11 +57,6 @@ abstract class HealthEndpointSupportTests<R extends ContributorRegistry<C>, C, T
 		this.registry = createRegistry();
 	}
 
-	@BeforeEach
-	void setup() {
-		MockitoAnnotations.initMocks(this);
-	}
-
 	@Test
 	void createWhenRegistryIsNullThrowsException() {
 		assertThatIllegalArgumentException().isThrownBy(() -> create(null, this.groups))

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/AutoConfigurationImportSelectorTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,7 +24,6 @@ import java.util.Set;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.MockitoAnnotations;
 
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanFactory;
@@ -62,7 +61,6 @@ class AutoConfigurationImportSelectorTests {
 
 	@BeforeEach
 	void setup() {
-		MockitoAnnotations.initMocks(this);
 		this.importSelector.setBeanFactory(this.beanFactory);
 		this.importSelector.setEnvironment(this.environment);
 		this.importSelector.setResourceLoader(new DefaultResourceLoader());

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/MockitoContextCustomizerFactoryTests.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,9 +16,7 @@
 
 package org.springframework.boot.test.mock.mockito;
 
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.MockitoAnnotations;
 
 import org.springframework.test.context.ContextCustomizer;
 
@@ -33,11 +31,6 @@ class MockitoContextCustomizerFactoryTests {
 
 	private final MockitoContextCustomizerFactory factory = new MockitoContextCustomizerFactory();
 
-	@BeforeEach
-	void setup() {
-		MockitoAnnotations.initMocks(this);
-	}
-
 	@Test
 	void getContextCustomizerWithoutAnnotationReturnsCustomizer() {
 		ContextCustomizer customizer = this.factory.createContextCustomizer(NoMockBeanAnnotation.class, null);