Clean up warnings in spring-test

spring-test/src/main/java/org/springframework/test/web/client/MockRestServiceServer.java

@@ -263,7 +263,6 @@ public class MockRestServiceServer {
 	 * Mock ClientHttpRequestFactory that creates requests by iterating
 	 * over the list of expected {@link DefaultRequestExpectation}'s.
 	 */
-	@SuppressWarnings("deprecation")
 	private class MockClientHttpRequestFactory implements ClientHttpRequestFactory, org.springframework.http.client.AsyncClientHttpRequestFactory {
 
 		@Override

spring-test/src/main/java/org/springframework/test/web/reactive/server/DefaultWebTestClient.java

@@ -132,7 +132,6 @@ class DefaultWebTestClient implements WebTestClient {
 		return toUriSpec(wc -> wc.method(HttpMethod.OPTIONS));
 	}
 
-	@SuppressWarnings("unchecked")
 	private <S extends RequestHeadersSpec<?>> UriSpec<S> toUriSpec(
 			Function<WebClient, WebClient.UriSpec<WebClient.RequestBodySpec>> function) {
 

spring-test/src/test/java/org/springframework/test/context/junit/jupiter/FailingBeforeAndAfterMethodsSpringExtensionTestCase.java

@@ -89,6 +89,7 @@ class FailingBeforeAndAfterMethodsSpringExtensionTestCase {
 		return testClasses().map(clazz -> dynamicTest(clazz.getSimpleName(), () -> runTestAndAssertCounters(clazz)));
 	}
 
+	@SuppressWarnings("deprecation")
 	private void runTestAndAssertCounters(Class<?> testClass) {
 		Launcher launcher = LauncherFactory.create();
 		ExceptionTrackingListener listener = new ExceptionTrackingListener();

spring-test/src/test/java/org/springframework/test/web/client/DefaultRequestExpectationTests.java

@@ -24,7 +24,6 @@ import org.junit.rules.ExpectedException;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpRequest;
-import org.springframework.mock.http.client.MockAsyncClientHttpRequest;
 
 import static junit.framework.TestCase.assertFalse;
 import static org.junit.Assert.assertTrue;
@@ -87,9 +86,10 @@ public class DefaultRequestExpectationTests {
 
 
 
+	@SuppressWarnings("deprecation")
 	private ClientHttpRequest createRequest(HttpMethod method, String url) {
 		try {
-			return new MockAsyncClientHttpRequest(method,  new URI(url));
+			return new org.springframework.mock.http.client.MockAsyncClientHttpRequest(method,  new URI(url));
 		}
 		catch (URISyntaxException ex) {
 			throw new IllegalStateException(ex);

spring-test/src/test/java/org/springframework/test/web/client/SimpleRequestExpectationManagerTests.java

@@ -25,7 +25,6 @@ import org.junit.rules.ExpectedException;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpRequest;
-import org.springframework.mock.http.client.MockAsyncClientHttpRequest;
 
 import static org.junit.Assert.assertEquals;
 import static org.springframework.http.HttpMethod.GET;
@@ -164,9 +163,10 @@ public class SimpleRequestExpectationManagerTests {
 	}
 
 
+	@SuppressWarnings("deprecation")
 	private ClientHttpRequest createRequest(HttpMethod method, String url) {
 		try {
-			return new MockAsyncClientHttpRequest(method,  new URI(url));
+			return new org.springframework.mock.http.client.MockAsyncClientHttpRequest(method,  new URI(url));
 		}
 		catch (URISyntaxException ex) {
 			throw new IllegalStateException(ex);

spring-test/src/test/java/org/springframework/test/web/client/UnorderedRequestExpectationManagerTests.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.test.web.client;
 
 import java.net.URI;
@@ -24,7 +25,6 @@ import org.junit.rules.ExpectedException;
 
 import org.springframework.http.HttpMethod;
 import org.springframework.http.client.ClientHttpRequest;
-import org.springframework.mock.http.client.MockAsyncClientHttpRequest;
 
 import static org.junit.Assert.assertEquals;
 import static org.springframework.http.HttpMethod.GET;
@@ -122,9 +122,10 @@ public class UnorderedRequestExpectationManagerTests {
 	}
 
 
+	@SuppressWarnings("deprecation")
 	private ClientHttpRequest createRequest(HttpMethod method, String url) {
 		try {
-			return new MockAsyncClientHttpRequest(method,  new URI(url));
+			return new org.springframework.mock.http.client.MockAsyncClientHttpRequest(method,  new URI(url));
 		}
 		catch (URISyntaxException ex) {
 			throw new IllegalStateException(ex);

spring-test/src/test/java/org/springframework/test/web/reactive/server/samples/ResponseEntityTests.java

@@ -17,7 +17,6 @@
 package org.springframework.test.web.reactive.server.samples;
 
 import java.net.URI;
-import java.time.Duration;
 import java.util.Arrays;
 import java.util.LinkedHashMap;
 import java.util.List;