Polish "Remove usage of `HttpStatus` in Web Endpoints"

Closes gh-10350

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/audit/AuditEventsWebEndpointExtension.java

@@ -42,7 +42,7 @@ public class AuditEventsWebEndpointExtension {
 	public WebEndpointResponse<AuditEventsDescriptor> eventsWithPrincipalDateAfterAndType(
 			String principal, Date after, String type) {
 		if (after == null) {
-			return new WebEndpointResponse<>(WebEndpointResponse.BAD_REQUEST_STATUS);
+			return new WebEndpointResponse<>(WebEndpointResponse.STATUS_BAD_REQUEST);
 		}
 		AuditEventsDescriptor auditEvents = this.delegate
 				.eventsWithPrincipalDateAfterAndType(principal, after, type);

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/WebEndpointResponse.java

@@ -34,27 +34,32 @@ public final class WebEndpointResponse<T> {
 	/**
 	 * {@code 200 OK}.
 	 */
-	public static final int OK_STATUS = 200;
+	public static final int STATUS_OK = 200;
 
 	/**
 	 * {@code 400 Bad Request}.
 	 */
-	public static final int BAD_REQUEST_STATUS = 400;
+	public static final int STATUS_BAD_REQUEST = 400;
+
+	/**
+	 * {@code 404 Not Found}.
+	 */
+	public static final int STATUS_NOT_FOUND = 404;
 
 	/**
 	 * {@code 429 Too Many Requests}.
 	 */
-	public static final int TOO_MANY_REQUESTS_STATUS = 429;
+	public static final int STATUS_TOO_MANY_REQUESTS = 429;
 
 	/**
 	 * {@code 500 Internal Server Error}.
 	 */
-	public static final int INTERNAL_SERVER_ERROR_STATUS = 500;
+	public static final int STATUS_INTERNAL_SERVER_ERROR = 500;
 
 	/**
 	 * {@code 503 Service Unavailable}.
 	 */
-	public static final int SERVICE_UNAVAILABLE_STATUS = 503;
+	public static final int STATUS_SERVICE_UNAVAILABLE = 503;
 
 	private final T body;
 
@@ -82,7 +87,7 @@ public final class WebEndpointResponse<T> {
 	 * @param body the body
 	 */
 	public WebEndpointResponse(T body) {
-		this(body, OK_STATUS);
+		this(body, STATUS_OK);
 	}
 
 	/**

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/HealthStatusHttpMapper.java

@@ -41,9 +41,9 @@ public class HealthStatusHttpMapper {
 	}
 
 	private void setupDefaultStatusMapping() {
-		addStatusMapping(Status.DOWN, WebEndpointResponse.SERVICE_UNAVAILABLE_STATUS);
+		addStatusMapping(Status.DOWN, WebEndpointResponse.STATUS_SERVICE_UNAVAILABLE);
 		addStatusMapping(Status.OUT_OF_SERVICE,
-				WebEndpointResponse.SERVICE_UNAVAILABLE_STATUS);
+				WebEndpointResponse.STATUS_SERVICE_UNAVAILABLE);
 	}
 
 	/**
@@ -105,9 +105,9 @@ public class HealthStatusHttpMapper {
 			return this.statusMapping.keySet().stream()
 					.filter((key) -> code.equals(getUniformValue(key)))
 					.map(this.statusMapping::get).findFirst()
-					.orElse(WebEndpointResponse.OK_STATUS);
+					.orElse(WebEndpointResponse.STATUS_OK);
 		}
-		return WebEndpointResponse.OK_STATUS;
+		return WebEndpointResponse.STATUS_OK;
 	}
 
 	private String getUniformValue(String code) {

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/management/HeapDumpWebEndpoint.java

@@ -89,13 +89,13 @@ public class HeapDumpWebEndpoint {
 		}
 		catch (IOException ex) {
 			return new WebEndpointResponse<>(
-					WebEndpointResponse.INTERNAL_SERVER_ERROR_STATUS);
+					WebEndpointResponse.STATUS_INTERNAL_SERVER_ERROR);
 		}
 		catch (HeapDumperUnavailableException ex) {
 			return new WebEndpointResponse<>(
-					WebEndpointResponse.SERVICE_UNAVAILABLE_STATUS);
+					WebEndpointResponse.STATUS_SERVICE_UNAVAILABLE);
 		}
-		return new WebEndpointResponse<>(WebEndpointResponse.TOO_MANY_REQUESTS_STATUS);
+		return new WebEndpointResponse<>(WebEndpointResponse.STATUS_TOO_MANY_REQUESTS);
 	}
 
 	private Resource dumpHeap(boolean live) throws IOException, InterruptedException {