Remove references to AsyncConfigurerSupport

Closes gh-27812

Author: snicoll

spring-context/src/main/java/org/springframework/scheduling/annotation/AsyncConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -28,19 +28,13 @@
  * {@link AsyncUncaughtExceptionHandler} instance used to process exception thrown from
  * async method with {@code void} return type.
  *
- * <p>Consider using {@link AsyncConfigurerSupport} providing default implementations for
- * both methods if only one element needs to be customized. Furthermore, backward compatibility
- * of this interface will be insured in case new customization options are introduced
- * in the future.
- *
  * <p>See @{@link EnableAsync} for usage examples.
  *
  * @author Chris Beams
  * @author Stephane Nicoll
  * @since 3.1
  * @see AbstractAsyncConfiguration
  * @see EnableAsync
- * @see AsyncConfigurerSupport
  */
 public interface AsyncConfigurer {
 

spring-context/src/test/java/org/springframework/scheduling/annotation/AsyncAnnotationBeanPostProcessorTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -218,8 +218,8 @@ public void handleExceptionWithListenableFuture() {
 	private void assertFutureWithException(Future<Object> result,
 			TestableAsyncUncaughtExceptionHandler exceptionHandler) {
 		assertThatExceptionOfType(ExecutionException.class).isThrownBy(
-				result::get)
-			.withCauseExactlyInstanceOf(UnsupportedOperationException.class);
+						result::get)
+				.withCauseExactlyInstanceOf(UnsupportedOperationException.class);
 		assertThat(exceptionHandler.isCalled()).as("handler should never be called with Future return type").isFalse();
 	}
 
@@ -343,7 +343,7 @@ public void execute(Runnable r) {
 
 	@Configuration
 	@EnableAsync
-	static class ConfigWithExceptionHandler extends AsyncConfigurerSupport {
+	static class ConfigWithExceptionHandler implements AsyncConfigurer {
 
 		@Bean
 		public ITestBean target() {

spring-test/src/test/java/org/springframework/test/context/event/EventPublishingTestExecutionListenerIntegrationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 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.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.scheduling.annotation.Async;
-import org.springframework.scheduling.annotation.AsyncConfigurerSupport;
+import org.springframework.scheduling.annotation.AsyncConfigurer;
 import org.springframework.scheduling.annotation.EnableAsync;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 import org.springframework.stereotype.Component;
@@ -73,13 +73,17 @@ public class EventPublishingTestExecutionListenerIntegrationTests {
 	private static final CountDownLatch countDownLatch = new CountDownLatch(1);
 
 	private final TestContextManager testContextManager = new TestContextManager(ExampleTestCase.class);
+
 	private final TestContext testContext = testContextManager.getTestContext();
+
 	// Note that the following invocation of getApplicationContext() forces eager
 	// loading of the test's ApplicationContext which consequently results in the
 	// publication of all test execution events. Otherwise, TestContext#publishEvent
 	// would never fire any events for ExampleTestCase.
 	private final TestExecutionListener listener = testContext.getApplicationContext().getBean(TestExecutionListener.class);
+
 	private final Object testInstance = new ExampleTestCase();
+
 	private final Method traceableTestMethod = ReflectionUtils.findMethod(ExampleTestCase.class, "traceableTest");
 
 
@@ -127,8 +131,8 @@ public void beforeTestMethodAnnotationWithFailingCondition() throws Exception {
 	public void beforeTestMethodAnnotationWithFailingEventListener() throws Exception {
 		Method method = ReflectionUtils.findMethod(ExampleTestCase.class, "testWithFailingEventListener");
 		assertThatExceptionOfType(RuntimeException.class).isThrownBy(() ->
-				testContextManager.beforeTestMethod(testInstance, method))
-			.withMessageContaining("Boom!");
+						testContextManager.beforeTestMethod(testInstance, method))
+				.withMessageContaining("Boom!");
 		verify(listener, only()).beforeTestMethod(testContext);
 	}
 
@@ -149,7 +153,7 @@ public void beforeTestMethodAnnotationWithFailingAsyncEventListener() throws Exc
 
 		verify(listener, only()).beforeTestMethod(testContext);
 		assertThat(TrackingAsyncUncaughtExceptionHandler.asyncException.getMessage())
-			.startsWith("Asynchronous exception for test method [" + methodName + "] in thread [" + THREAD_NAME_PREFIX);
+				.startsWith("Asynchronous exception for test method [" + methodName + "] in thread [" + THREAD_NAME_PREFIX);
 	}
 
 	@Test
@@ -211,7 +215,7 @@ public void testWithFailingAsyncEventListener() {
 
 	@Configuration
 	@EnableAsync(proxyTargetClass = true)
-	static class TestEventListenerConfiguration extends AsyncConfigurerSupport {
+	static class TestEventListenerConfiguration implements AsyncConfigurer {
 
 		@Override
 		public Executor getAsyncExecutor() {
@@ -306,7 +310,7 @@ static class AsyncTestEventComponent {
 		public void beforeTestMethodWithAsyncFailure(BeforeTestMethodEvent event) throws Exception {
 			this.listener.beforeTestMethod(event.getSource());
 			throw new RuntimeException(String.format("Asynchronous exception for test method [%s] in thread [%s]",
-				event.getTestContext().getTestMethod().getName(), Thread.currentThread().getName()));
+					event.getTestContext().getTestMethod().getName(), Thread.currentThread().getName()));
 		}
 
 	}