Remove BDDMockito Checkstyle rule

This commit removes the BDDMockito Checkstyle rule, since it did not
actually enforce the use of BDDMockito.

This commit also updates static imports to use Mockito instead of
BDDMockito where appropriate (automated via the Eclipse IDE Organize
Imports clean-up task).

Closes gh-34616

spring-test/src/test/java/org/springframework/test/context/aot/AotContextLoaderTests.java

@@ -25,9 +25,9 @@ import org.springframework.context.support.GenericApplicationContext;
 import org.springframework.test.context.MergedContextConfiguration;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.never;
-import static org.mockito.BDDMockito.spy;
 import static org.mockito.BDDMockito.then;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
 
 /**
  * Unit tests for {@link AotContextLoader}.

spring-test/src/test/java/org/springframework/test/context/aot/samples/bean/override/MockitoBeanJupiterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -28,7 +28,7 @@ import org.springframework.test.context.bean.override.mockito.MockitoBean;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * @author Sam Brannen

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/MockitoBeanForBrokenFactoryBeanIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -26,7 +26,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * Test {@link MockitoBean @MockitoBean} for a {@link FactoryBean} that is

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/MockitoBeanForByTypeLookupIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -33,10 +33,10 @@ import org.springframework.test.mockito.MockitoAssertions;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.BDDMockito.when;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
 import static org.springframework.test.mockito.MockitoAssertions.assertIsMock;
 
 /**

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/MockitoBeanForFactoryBeanIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -31,7 +31,7 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * Test {@link MockitoBean @MockitoBean} for a factory bean configuration.

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/MockitoBeanManuallyRegisteredSingletonTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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 +24,7 @@ import org.springframework.test.context.bean.override.mockito.MockitoBeanManuall
 import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * Verifies support for overriding a manually registered singleton bean with

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/integration/MockitoBeanAndGenericsIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -22,7 +22,7 @@ import org.springframework.test.context.bean.override.mockito.integration.Abstra
 import org.springframework.test.context.bean.override.mockito.integration.AbstractMockitoBeanAndGenericsIntegrationTests.ThingImpl;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * Concrete implementation of {@link AbstractMockitoBeanAndGenericsIntegrationTests}.

spring-test/src/test/java/org/springframework/test/context/bean/override/mockito/integration/MockitoBeanAndSpringMethodRuleWithRepeatJUnit4IntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -26,7 +26,7 @@ import org.springframework.test.context.bean.override.mockito.MockitoBean;
 import org.springframework.test.context.junit4.rules.SpringMethodRule;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.BDDMockito.when;
+import static org.mockito.Mockito.when;
 
 /**
  * Tests for {@link MockitoBean @MockitoBean}, {@link SpringMethodRule}, and