Provide a workaround to allow multiple @ImportRuntimeHints

Provide a workaround for spring-projects/spring-framework#29361 so
that multiple `@ImportRuntimeHints` can be used in a type hierarchy.

The commit should cover Actuator web endpoint use cases with the
exception of Cloud Foundry endpoints which are not possible due to
package access issues.

See gh-29361

Author: sdeleuze

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

@@ -31,6 +31,7 @@
 import org.springframework.boot.actuate.endpoint.web.EndpointMediaTypes;
 import org.springframework.boot.actuate.endpoint.web.ExposableWebEndpoint;
 import org.springframework.boot.actuate.endpoint.web.Link;
+import org.springframework.boot.actuate.endpoint.web.reactive.AbstractWebFluxEndpointHandlerMapping.AbstractWebFluxEndpointHandlerMappingRuntimeHints;
 import org.springframework.boot.actuate.endpoint.web.reactive.WebFluxEndpointHandlerMapping.WebFluxEndpointHandlerMappingRuntimeHints;
 import org.springframework.context.annotation.ImportRuntimeHints;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -48,7 +49,8 @@
  * @author Brian Clozel
  * @since 2.0.0
  */
-@ImportRuntimeHints(WebFluxEndpointHandlerMappingRuntimeHints.class)
+@ImportRuntimeHints({ WebFluxEndpointHandlerMappingRuntimeHints.class,
+		AbstractWebFluxEndpointHandlerMappingRuntimeHints.class })
 public class WebFluxEndpointHandlerMapping extends AbstractWebFluxEndpointHandlerMapping implements InitializingBean {
 
 	private final EndpointLinksResolver linksResolver;

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

@@ -33,6 +33,7 @@
 import org.springframework.boot.actuate.endpoint.web.EndpointMediaTypes;
 import org.springframework.boot.actuate.endpoint.web.ExposableWebEndpoint;
 import org.springframework.boot.actuate.endpoint.web.Link;
+import org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping.AbstractWebMvcEndpointHandlerMappingRuntimeHints;
 import org.springframework.boot.actuate.endpoint.web.servlet.WebMvcEndpointHandlerMapping.WebMvcEndpointHandlerMappingRuntimeHints;
 import org.springframework.context.annotation.ImportRuntimeHints;
 import org.springframework.web.bind.annotation.ResponseBody;
@@ -47,7 +48,8 @@
  * @author Phillip Webb
  * @since 2.0.0
  */
-@ImportRuntimeHints(WebMvcEndpointHandlerMappingRuntimeHints.class)
+@ImportRuntimeHints({ WebMvcEndpointHandlerMappingRuntimeHints.class,
+		AbstractWebMvcEndpointHandlerMappingRuntimeHints.class })
 public class WebMvcEndpointHandlerMapping extends AbstractWebMvcEndpointHandlerMapping {
 
 	private final EndpointLinksResolver linksResolver;