Deprecate ControllerEndpointsSupplier and ExposableControllerEndpoint

See gh-41596

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/cloudfoundry/reactive/ReactiveCloudFoundryActuatorAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -107,6 +107,7 @@ public CloudFoundryInfoEndpointWebExtension cloudFoundryInfoEndpointWebExtension
 	}
 
 	@Bean
+	@SuppressWarnings("removal")
 	public CloudFoundryWebFluxEndpointHandlerMapping cloudFoundryWebFluxEndpointHandlerMapping(
 			ParameterValueMapper parameterMapper, EndpointMediaTypes endpointMediaTypes,
 			WebClient.Builder webClientBuilder, ControllerEndpointsSupplier controllerEndpointsSupplier,

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/WebEndpointAutoConfiguration.java

@@ -115,6 +115,7 @@ public IncludeExcludeEndpointFilter<ExposableWebEndpoint> webExposeExcludeProper
 	}
 
 	@Bean
+	@SuppressWarnings("removal")
 	public IncludeExcludeEndpointFilter<ExposableControllerEndpoint> controllerExposeExcludePropertyEndpointFilter() {
 		WebEndpointProperties.Exposure exposure = this.properties.getExposure();
 		return new IncludeExcludeEndpointFilter<>(ExposableControllerEndpoint.class, exposure.getInclude(),

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/reactive/WebFluxEndpointManagementContextConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -89,6 +89,7 @@ public class WebFluxEndpointManagementContextConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
+	@SuppressWarnings("removal")
 	public WebFluxEndpointHandlerMapping webEndpointReactiveHandlerMapping(WebEndpointsSupplier webEndpointsSupplier,
 			ControllerEndpointsSupplier controllerEndpointsSupplier, EndpointMediaTypes endpointMediaTypes,
 			CorsEndpointProperties corsProperties, WebEndpointProperties webEndpointProperties,
@@ -128,6 +129,7 @@ public AdditionalHealthEndpointPathsWebFluxHandlerMapping managementHealthEndpoi
 
 	@Bean
 	@ConditionalOnMissingBean
+	@SuppressWarnings("removal")
 	public ControllerEndpointHandlerMapping controllerEndpointHandlerMapping(
 			ControllerEndpointsSupplier controllerEndpointsSupplier, CorsEndpointProperties corsProperties,
 			WebEndpointProperties webEndpointProperties) {

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/web/servlet/WebMvcEndpointManagementContextConfiguration.java

@@ -124,6 +124,7 @@ public AdditionalHealthEndpointPathsWebMvcHandlerMapping managementHealthEndpoin
 
 	@Bean
 	@ConditionalOnMissingBean
+	@SuppressWarnings("removal")
 	public ControllerEndpointHandlerMapping controllerEndpointHandlerMapping(
 			ControllerEndpointsSupplier controllerEndpointsSupplier, CorsEndpointProperties corsProperties,
 			WebEndpointProperties webEndpointProperties) {

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/annotation/ControllerEndpointsSupplier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -23,8 +23,11 @@
  *
  * @author Phillip Webb
  * @since 2.0.0
+ * @deprecated since 3.3.0 in favor of {@code @Endpoint} and {@code @WebEndpoint} support
  */
 @FunctionalInterface
+@Deprecated(since = "3.3.0", forRemoval = true)
+@SuppressWarnings("removal")
 public interface ControllerEndpointsSupplier extends EndpointsSupplier<ExposableControllerEndpoint> {
 
 }

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/annotation/DiscoveredControllerEndpoint.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -28,6 +28,7 @@
  *
  * @author Phillip Webb
  */
+@SuppressWarnings("removal")
 class DiscoveredControllerEndpoint extends AbstractDiscoveredEndpoint<Operation>
 		implements ExposableControllerEndpoint {
 

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/annotation/ExposableControllerEndpoint.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2024 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 +28,9 @@
  *
  * @author Phillip Webb
  * @since 2.0.0
+ * @deprecated since 3.3.0 in favor of {@code @Endpoint} and {@code @WebEndpoint} support
  */
+@Deprecated(since = "3.3.0", forRemoval = true)
 public interface ExposableControllerEndpoint extends ExposableEndpoint<Operation>, PathMappedEndpoint {
 
 	/**

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/reactive/ControllerEndpointHandlerMapping.java

@@ -42,6 +42,7 @@
  * @author Phillip Webb
  * @since 2.0.0
  */
+@SuppressWarnings("removal")
 public class ControllerEndpointHandlerMapping extends RequestMappingHandlerMapping {
 
 	private final EndpointMapping endpointMapping;

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/servlet/ControllerEndpointHandlerMapping.java

@@ -43,6 +43,7 @@
  * @author Phillip Webb
  * @since 2.0.0
  */
+@SuppressWarnings("removal")
 public class ControllerEndpointHandlerMapping extends RequestMappingHandlerMapping {
 
 	private final EndpointMapping endpointMapping;

spring-boot-project/spring-boot-actuator/src/test/java/org/springframework/boot/actuate/endpoint/web/EndpointLinksResolverTests.java

@@ -37,6 +37,7 @@
  *
  * @author Andy Wilkinson
  */
+@SuppressWarnings("removal")
 class EndpointLinksResolverTests {
 
 	@Test