Align naming change for Jackson components

This commit polishes the renaming of JsonComponent to JacksonComponent
and the use of JacksonModule instead of Module in Jackson 2.

This also adds integration tests that use a JacksonComponent with
WebMvcTest and WebFluxTest.

Closes gh-47864

core/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/json/JsonTest.java

@@ -44,12 +44,12 @@ import org.springframework.test.context.junit.jupiter.SpringExtension;
  * Using this annotation only enables auto-configuration that is relevant to JSON tests.
  * Similarly, component scanning is limited to beans annotated with:
  * <ul>
- * <li>{@code @JsonComponent}</li>
+ * <li>{@code @JacksonComponent}</li>
  * </ul>
  * <p>
  * as well as beans that implement:
  * <ul>
- * <li>{@code Module}, if Jackson is available</li>
+ * <li>{@code JacksonModule}, if Jackson is available</li>
  * </ul>
  * <p>
  * By default, tests annotated with {@code JsonTest} will also initialize
@@ -88,8 +88,8 @@ public @interface JsonTest {
 
 	/**
 	 * Determines if default filtering should be used with
-	 * {@link SpringBootApplication @SpringBootApplication}. By default only
-	 * {@code @JsonComponent} and {@code Module} beans are included.
+	 * {@link SpringBootApplication @SpringBootApplication}. By default, only
+	 * {@code @JacksonComponent} and {@code JacksonModule} beans are included.
 	 * @see #includeFilters()
 	 * @see #excludeFilters()
 	 * @return if default filters should be used

module/spring-boot-graphql-test/src/main/java/org/springframework/boot/graphql/test/autoconfigure/GraphQlTest.java

@@ -47,7 +47,7 @@ import org.springframework.test.context.junit.jupiter.SpringExtension;
  * <ul>
  * <li>{@code @Controller}
  * <li>{@code RuntimeWiringConfigurer}
- * <li>{@code @JsonComponent}
+ * <li>{@code @JacksonComponent}
  * <li>{@code Converter}
  * <li>{@code GenericConverter}
  * <li>{@code DataFetcherExceptionResolver}
@@ -121,7 +121,7 @@ public @interface GraphQlTest {
 	 * Determines if default filtering should be used with
 	 * {@link SpringBootApplication @SpringBootApplication}. By default, only
 	 * {@code @Controller} (when no explicit {@link #controllers() controllers} are
-	 * defined), {@code RuntimeWiringConfigurer}, {@code @JsonComponent},
+	 * defined), {@code RuntimeWiringConfigurer}, {@code @JacksonComponent},
 	 * {@code Converter}, {@code GenericConverter}, {@code DataFetcherExceptionResolver},
 	 * {@code Instrumentation} and {@code GraphQlSourceBuilderCustomizer} beans are
 	 * included.

module/spring-boot-jackson/src/test/java/org/springframework/boot/jackson/autoconfigure/JacksonAutoConfigurationTests.java

@@ -609,7 +609,7 @@ class JacksonAutoConfigurationTests {
 	}
 
 	@Test
-	void jsonComponentThatInjectsJsonMapperCausesBeanCurrentlyInCreationException() {
+	void jacksonComponentThatInjectsJsonMapperCausesBeanCurrentlyInCreationException() {
 		this.contextRunner.withUserConfiguration(CircularDependencySerializerConfiguration.class).run((context) -> {
 			assertThat(context).hasFailed();
 			assertThat(context).getFailure().hasRootCauseInstanceOf(BeanCurrentlyInCreationException.class);

module/spring-boot-jackson/src/test/java/org/springframework/boot/jackson/autoconfigure/jsontest/app/ExampleCustomObject.java

@@ -20,7 +20,7 @@ import java.util.Date;
 import java.util.UUID;
 
 /**
- * Example object to read/write as JSON through {@link ExampleJsonComponent}.
+ * Example object to read/write as JSON through {@link ExampleJacksonComponent}.
  *
  * @author Phillip Webb
  * @param value the value

module/spring-boot-jackson/src/test/java/org/springframework/boot/jackson/autoconfigure/jsontest/app/ExampleJacksonComponent.java

@@ -31,13 +31,13 @@ import org.springframework.boot.jackson.ObjectValueSerializer;
 import org.springframework.boot.test.autoconfigure.json.JsonTest;
 
 /**
- * Example {@link JacksonComponent @JsonComponent} for use with {@link JsonTest @JsonTest}
- * tests.
+ * Example {@link JacksonComponent @JacksonComponent} for use with
+ * {@link JsonTest @JsonTest} tests.
  *
  * @author Phillip Webb
  */
 @JacksonComponent
-public class ExampleJsonComponent {
+public class ExampleJacksonComponent {
 
 	static class Serializer extends ObjectValueSerializer<ExampleCustomObject> {
 

module/spring-boot-restclient-test/src/main/java/org/springframework/boot/restclient/test/autoconfigure/RestClientTest.java

@@ -45,12 +45,12 @@ import org.springframework.web.client.RestClient.Builder;
  * Using this annotation only enables auto-configuration that is relevant to rest client
  * tests. Similarly, component scanning is limited to beans annotated with:
  * <ul>
- * <li>{@code @JsonComponent}</li>
+ * <li>{@code @JacksonComponent}</li>
  * </ul>
  * <p>
  * as well as beans that implement:
  * <ul>
- * <li>{@code Module}, if Jackson is available</li>
+ * <li>{@code JacksonModule}, if Jackson is available</li>
  * </ul>
  * <p>
  * By default, tests annotated with {@code RestClientTest} will also auto-configure a
@@ -107,8 +107,8 @@ public @interface RestClientTest {
 
 	/**
 	 * Determines if default filtering should be used with
-	 * {@link SpringBootApplication @SpringBootApplication}. By default only
-	 * {@code @JsonComponent} and {@code Module} beans are included.
+	 * {@link SpringBootApplication @SpringBootApplication}. By default, only
+	 * {@code @JacksonComponent} and {@code JacksonModule} beans are included.
 	 * @see #includeFilters()
 	 * @see #excludeFilters()
 	 * @return if default filters should be used

module/spring-boot-webclient-test/src/main/java/org/springframework/boot/webclient/test/autoconfigure/WebClientTest.java

@@ -43,7 +43,7 @@ import org.springframework.web.client.RestClient.Builder;
  * Using this annotation only enables auto-configuration that is relevant to rest client
  * tests. Similarly, component scanning is limited to beans annotated with:
  * <ul>
- * <li>{@code @JsonComponent}</li>
+ * <li>{@code @JacksonComponent}</li>
  * </ul>
  * <p>
  * as well as beans that implement:
@@ -97,8 +97,8 @@ public @interface WebClientTest {
 
 	/**
 	 * Determines if default filtering should be used with
-	 * {@link SpringBootApplication @SpringBootApplication}. By default only
-	 * {@code @JsonComponent} and {@code Module} beans are included.
+	 * {@link SpringBootApplication @SpringBootApplication}. By default, only
+	 * {@code @JacksonComponent} and {@code JacksonModule} beans are included.
 	 * @see #includeFilters()
 	 * @see #excludeFilters()
 	 * @return if default filters should be used

module/spring-boot-webflux-test/src/main/java/org/springframework/boot/webflux/test/autoconfigure/WebFluxTest.java

@@ -49,7 +49,7 @@ import org.springframework.test.web.reactive.server.WebTestClient;
  * <ul>
  * <li>{@code @Controller}</li>
  * <li>{@code @ControllerAdvice}</li>
- * <li>{@code @JsonComponent}</li>
+ * <li>{@code @JacksonComponent}</li>
  * </ul>
  * <p>
  * as well as beans that implement:
@@ -57,7 +57,7 @@ import org.springframework.test.web.reactive.server.WebTestClient;
  * <li>{@code Converter}</li>
  * <li>{@code GenericConverter}</li>
  * <li>{@code IDialect}, if Thymeleaf is available</li>
- * <li>{@code Module}, if Jackson is available</li>
+ * <li>{@code JacksonModule}, if Jackson is available</li>
  * <li>{@code WebExceptionHandler}</li>
  * <li>{@code WebFluxConfigurer}</li>
  * <li>{@code WebFilter}</li>

module/spring-boot-webflux-test/src/main/java/org/springframework/boot/webflux/test/autoconfigure/WebFluxTypeExcludeFilter.java

@@ -43,7 +43,7 @@ class WebFluxTypeExcludeFilter extends StandardAnnotationCustomizableTypeExclude
 	private static final Class<?>[] NO_CONTROLLERS = {};
 
 	private static final String[] OPTIONAL_INCLUDES = { "tools.jackson.databind.JacksonModule",
-			"org.springframework.boot.jackson.JsonComponent" };
+			"org.springframework.boot.jackson.JacksonComponent" };
 
 	private static final Set<Class<?>> KNOWN_INCLUDES;
 

module/spring-boot-webflux-test/src/test/java/org/springframework/boot/webflux/test/autoconfigure/ExampleController2.java

@@ -21,6 +21,8 @@ import reactor.core.publisher.Mono;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
 
 /**
@@ -42,4 +44,10 @@ public class ExampleController2 {
 		return Mono.just(id.getId() + "two");
 	}
 
+	@PostMapping("/two/{id}")
+	@ResponseBody
+	public Mono<ExampleResult> twoUpdate(@PathVariable String id) {
+		return Mono.just(new ExampleResult(id));
+	}
+
 }

module/spring-boot-webflux-test/src/test/java/org/springframework/boot/webflux/test/autoconfigure/ExampleResult.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webflux.test.autoconfigure;
+
+import org.springframework.boot.jackson.JacksonComponent;
+
+/**
+ * Example result that requires a {@link JacksonComponent}.
+ *
+ * @param id sample data
+ * @author Stephane Nicoll
+ */
+public record ExampleResult(String id) {
+}

module/spring-boot-webflux-test/src/test/java/org/springframework/boot/webflux/test/autoconfigure/ExampleResultSerializer.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webflux.test.autoconfigure;
+
+import tools.jackson.core.JsonGenerator;
+import tools.jackson.databind.SerializationContext;
+
+import org.springframework.boot.jackson.JacksonComponent;
+import org.springframework.boot.jackson.ObjectValueSerializer;
+
+/**
+ * {@link ObjectValueSerializer} for {@link ExampleResult}.
+ *
+ * @author Stephane Nicoll
+ */
+@JacksonComponent
+public class ExampleResultSerializer extends ObjectValueSerializer<ExampleResult> {
+
+	@Override
+	protected void serializeObject(ExampleResult item, JsonGenerator jsonWriter, SerializationContext context) {
+		jsonWriter.writeStringProperty("identifier", item.id());
+	}
+
+}

module/spring-boot-webflux-test/src/test/java/org/springframework/boot/webflux/test/autoconfigure/WebFluxTestJacksonComponentIntegrationTests.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webflux.test.autoconfigure;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.jackson.JacksonComponent;
+import org.springframework.test.json.JsonCompareMode;
+import org.springframework.test.web.reactive.server.WebTestClient;
+
+/**
+ * Tests for {@link WebFluxTest @WebFluxTest} to validate {@link JacksonComponent} beans
+ * are discovered.
+ *
+ * @author Stephane Nicoll
+ */
+@WebFluxTest(controllers = ExampleController2.class)
+class WebFluxTestJacksonComponentIntegrationTests {
+
+	@Autowired
+	private WebTestClient webClient;
+
+	@Test
+	void shouldFindConverter() {
+
+		this.webClient.post()
+			.uri("/two/" + "1234abcd")
+			.exchange()
+			.expectStatus()
+			.isOk()
+			.expectBody()
+			.json("{ \"identifier\": \"1234abcd\" }", JsonCompareMode.LENIENT);
+	}
+
+}

module/spring-boot-webflux-test/src/test/java/org/springframework/boot/webflux/test/autoconfigure/WebFluxTypeExcludeFilterTests.java

@@ -22,6 +22,7 @@ import org.junit.jupiter.api.Test;
 import reactor.core.publisher.Mono;
 import tools.jackson.databind.module.SimpleModule;
 
+import org.springframework.boot.jackson.JacksonComponent;
 import org.springframework.context.annotation.ComponentScan.Filter;
 import org.springframework.context.annotation.FilterType;
 import org.springframework.core.type.classreading.MetadataReader;
@@ -59,6 +60,7 @@ class WebFluxTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleWebFilter.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -72,6 +74,7 @@ class WebFluxTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleWebFilter.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -85,6 +88,7 @@ class WebFluxTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleWebFilter.class)).isTrue();
 		assertThat(excludes(filter, ExampleModule.class)).isTrue();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isTrue();
 	}
 
 	@Test
@@ -98,6 +102,7 @@ class WebFluxTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isFalse();
 		assertThat(excludes(filter, ExampleWebFilter.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -111,6 +116,7 @@ class WebFluxTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleWebFilter.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	private boolean excludes(WebFluxTypeExcludeFilter filter, Class<?> type) throws IOException {
@@ -185,4 +191,9 @@ class WebFluxTypeExcludeFilterTests {
 
 	}
 
+	@JacksonComponent
+	static class ExampleJacksonComponent {
+
+	}
+
 }

module/spring-boot-webmvc-test/src/main/java/org/springframework/boot/webmvc/test/autoconfigure/WebMvcTest.java

@@ -47,7 +47,7 @@ import org.springframework.test.web.servlet.MockMvc;
  * <ul>
  * <li>{@code @Controller}</li>
  * <li>{@code @ControllerAdvice}</li>
- * <li>{@code @JsonComponent}</li>
+ * <li>{@code @JacksonComponent}</li>
  * </ul>
  * <p>
  * as well as beans that implement:
@@ -62,7 +62,7 @@ import org.springframework.test.web.servlet.MockMvc;
  * <li>{@code HandlerMethodArgumentResolver}</li>
  * <li>{@code HttpMessageConverter}</li>
  * <li>{@code IDialect}, if Thymeleaf is available</li>
- * <li>{@code Module}, if Jackson is available</li>
+ * <li>{@code JacksonModule}, if Jackson is available</li>
  * <li>{@code SecurityFilterChain}</li>
  * <li>{@code WebMvcConfigurer}</li>
  * <li>{@code WebMvcRegistrations}</li>

module/spring-boot-webmvc-test/src/main/java/org/springframework/boot/webmvc/test/autoconfigure/WebMvcTypeExcludeFilter.java

@@ -49,10 +49,10 @@ class WebMvcTypeExcludeFilter extends StandardAnnotationCustomizableTypeExcludeF
 
 	private static final Class<?>[] NO_CONTROLLERS = {};
 
-	private static final String[] OPTIONAL_INCLUDES = { "org.springframework.boot.jackson.JsonComponent",
+	private static final String[] OPTIONAL_INCLUDES = { "tools.jackson.databind.JacksonModule",
+			"org.springframework.boot.jackson.JacksonComponent",
 			"org.springframework.security.config.annotation.web.WebSecurityConfigurer",
-			"org.springframework.security.web.SecurityFilterChain", "org.thymeleaf.dialect.IDialect",
-			"tools.jackson.databind.JacksonModule" };
+			"org.springframework.security.web.SecurityFilterChain", "org.thymeleaf.dialect.IDialect", };
 
 	private static final Set<Class<?>> KNOWN_INCLUDES;
 

module/spring-boot-webmvc-test/src/test/java/org/springframework/boot/webmvc/test/autoconfigure/WebMvcTypeExcludeFilterTests.java

@@ -21,6 +21,7 @@ import java.io.IOException;
 import org.junit.jupiter.api.Test;
 import tools.jackson.databind.module.SimpleModule;
 
+import org.springframework.boot.jackson.JacksonComponent;
 import org.springframework.boot.webmvc.autoconfigure.WebMvcRegistrations;
 import org.springframework.context.annotation.ComponentScan.Filter;
 import org.springframework.context.annotation.FilterType;
@@ -60,6 +61,7 @@ class WebMvcTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleHandlerInterceptor.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -75,6 +77,7 @@ class WebMvcTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleHandlerInterceptor.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -90,6 +93,7 @@ class WebMvcTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleHandlerInterceptor.class)).isTrue();
 		assertThat(excludes(filter, ExampleModule.class)).isTrue();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isTrue();
 	}
 
 	@Test
@@ -105,6 +109,7 @@ class WebMvcTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isFalse();
 		assertThat(excludes(filter, ExampleHandlerInterceptor.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	@Test
@@ -120,6 +125,7 @@ class WebMvcTypeExcludeFilterTests {
 		assertThat(excludes(filter, ExampleRepository.class)).isTrue();
 		assertThat(excludes(filter, ExampleHandlerInterceptor.class)).isFalse();
 		assertThat(excludes(filter, ExampleModule.class)).isFalse();
+		assertThat(excludes(filter, ExampleJacksonComponent.class)).isFalse();
 	}
 
 	private boolean excludes(WebMvcTypeExcludeFilter filter, Class<?> type) throws IOException {
@@ -198,4 +204,9 @@ class WebMvcTypeExcludeFilterTests {
 
 	}
 
+	@JacksonComponent
+	static class ExampleJacksonComponent {
+
+	}
+
 }

module/spring-boot-webmvc-test/src/test/java/org/springframework/boot/webmvc/test/autoconfigure/mockmvc/ExampleController2.java

@@ -20,6 +20,7 @@ import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 
 /**
@@ -42,4 +43,10 @@ public class ExampleController2 {
 		return id.getId() + "two";
 	}
 
+	@PostMapping("/two/{id}")
+	@ResponseBody
+	public ExampleResult twoUpdate(@PathVariable String id) {
+		return new ExampleResult(id);
+	}
+
 }

module/spring-boot-webmvc-test/src/test/java/org/springframework/boot/webmvc/test/autoconfigure/mockmvc/ExampleResult.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webmvc.test.autoconfigure.mockmvc;
+
+import org.springframework.boot.jackson.JacksonComponent;
+
+/**
+ * Example result that requires a {@link JacksonComponent}.
+ *
+ * @param id sample data
+ * @author Stephane Nicoll
+ */
+public record ExampleResult(String id) {
+}

module/spring-boot-webmvc-test/src/test/java/org/springframework/boot/webmvc/test/autoconfigure/mockmvc/ExampleResultSerializer.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webmvc.test.autoconfigure.mockmvc;
+
+import tools.jackson.core.JsonGenerator;
+import tools.jackson.databind.SerializationContext;
+
+import org.springframework.boot.jackson.JacksonComponent;
+import org.springframework.boot.jackson.ObjectValueSerializer;
+
+/**
+ * {@link ObjectValueSerializer} for {@link ExampleResult}.
+ *
+ * @author Stephane Nicoll
+ */
+@JacksonComponent
+public class ExampleResultSerializer extends ObjectValueSerializer<ExampleResult> {
+
+	@Override
+	protected void serializeObject(ExampleResult item, JsonGenerator jsonWriter, SerializationContext context) {
+		jsonWriter.writeStringProperty("identifier", item.id());
+	}
+
+}

module/spring-boot-webmvc-test/src/test/java/org/springframework/boot/webmvc/test/autoconfigure/mockmvc/WebMvcTestJacksonComponentIntegrationTests.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2012-present 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.webmvc.test.autoconfigure.mockmvc;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.jackson.JacksonComponent;
+import org.springframework.boot.webmvc.test.autoconfigure.WebMvcTest;
+import org.springframework.test.web.servlet.assertj.MockMvcTester;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link WebMvcTest @WebMvcTest} to validate {@link JacksonComponent} beans are
+ * discovered.
+ *
+ * @author Stephane Nicoll
+ */
+@WebMvcTest(controllers = ExampleController2.class)
+class WebMvcTestJacksonComponentIntegrationTests {
+
+	@Autowired
+	private MockMvcTester mvc;
+
+	@Test
+	void shouldFindJacksonComponent() {
+		assertThat(this.mvc.post().uri("/two/1234abcd")).hasStatusOk().bodyJson().isLenientlyEqualTo("""
+				{ "identifier": "1234abcd" }
+				""");
+	}
+
+}

module/spring-boot-webservices-test/src/main/java/org/springframework/boot/webservices/test/autoconfigure/client/WebServiceClientTest.java

@@ -95,8 +95,8 @@ public @interface WebServiceClientTest {
 
 	/**
 	 * Determines if default filtering should be used with
-	 * {@link SpringBootApplication @SpringBootApplication}. By default only
-	 * {@code @JsonComponent} and {@code Module} beans are included.
+	 * {@link SpringBootApplication @SpringBootApplication}. By default, only
+	 * {@code @JacksonComponent} and {@code JacksonModule} beans are included.
 	 * @see #includeFilters()
 	 * @see #excludeFilters()
 	 * @return if default filters should be used