Polish

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/elasticsearch/ElasticsearchReactiveHealthIndicator.java

@@ -23,8 +23,11 @@ import reactor.core.publisher.Mono;
 import org.springframework.boot.actuate.health.AbstractReactiveHealthIndicator;
 import org.springframework.boot.actuate.health.Health;
 import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.boot.actuate.health.Status;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient;
+import org.springframework.web.reactive.function.client.ClientResponse;
+import org.springframework.web.reactive.function.client.WebClient;
 
 /**
  * {@link HealthIndicator} for an Elasticsearch cluster using a
@@ -50,28 +53,28 @@ public class ElasticsearchReactiveHealthIndicator extends AbstractReactiveHealth
 
 	@Override
 	protected Mono<Health> doHealthCheck(Health.Builder builder) {
-		return this.client.execute((callback) -> callback.get().uri("/_cluster/health/").exchange())
-				.flatMap((response) -> {
-					if (response.statusCode().is2xxSuccessful()) {
-						return response.bodyToMono(STRING_OBJECT_MAP).map((body) -> {
-							String status = (String) body.get("status");
-							if (RED_STATUS.equals(status)) {
-								builder.outOfService();
-							}
-							else {
-								builder.up();
-							}
-							builder.withDetails(body);
-							return builder.build();
-						});
-					}
-					else {
-						builder.down();
-						builder.withDetail("statusCode", response.rawStatusCode());
-						builder.withDetail("reasonPhrase", response.statusCode().getReasonPhrase());
-						return response.releaseBody().thenReturn(builder.build());
-					}
-				});
+		return this.client.execute(this::getHealth).flatMap((response) -> doHealthCheck(builder, response));
+	}
+
+	private Mono<ClientResponse> getHealth(WebClient webClient) {
+		return webClient.get().uri("/_cluster/health/").exchange();
+	}
+
+	private Mono<Health> doHealthCheck(Health.Builder builder, ClientResponse response) {
+		if (response.statusCode().is2xxSuccessful()) {
+			return response.bodyToMono(STRING_OBJECT_MAP).map((body) -> getHealth(builder, body));
+		}
+		builder.down();
+		builder.withDetail("statusCode", response.rawStatusCode());
+		builder.withDetail("reasonPhrase", response.statusCode().getReasonPhrase());
+		return response.releaseBody().thenReturn(builder.build());
+	}
+
+	private Health getHealth(Health.Builder builder, Map<String, Object> body) {
+		String status = (String) body.get("status");
+		builder.status(RED_STATUS.equals(status) ? Status.OUT_OF_SERVICE : Status.UP);
+		builder.withDetails(body);
+		return builder.build();
 	}
 
 }

spring-boot-project/spring-boot-docs/build.gradle

@@ -95,7 +95,7 @@ dependencies {
 	testImplementation(project(":spring-boot-project:spring-boot-tools:spring-boot-test-support"))
 	testImplementation("org.assertj:assertj-core")
 	testImplementation("org.junit.jupiter:junit-jupiter")
-	
+
 	testRuntimeOnly(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-web"))
 	testRuntimeOnly("com.h2database:h2")
 	testRuntimeOnly("org.springframework:spring-jdbc")

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/docker/transport/LocalHttpClientTransport.java

@@ -69,8 +69,10 @@ final class LocalHttpClientTransport extends HttpClientTransport {
 
 	private static String socketFilePath(Environment environment) {
 		String host = environment.get(DOCKER_HOST);
-		return (host != null && host.startsWith(UNIX_SOCKET_PREFIX)) ? host.substring(UNIX_SOCKET_PREFIX.length())
-				: host;
+		if (host != null && host.startsWith(UNIX_SOCKET_PREFIX)) {
+			return host.substring(UNIX_SOCKET_PREFIX.length());
+		}
+		return host;
 	}
 
 	/**

spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/io/ZipFileTarArchive.java

@@ -76,7 +76,7 @@ public class ZipFileTarArchive implements TarArchive {
 
 	private void assertArchiveHasEntries(File jarFile) {
 		try (ZipFile zipFile = new ZipFile(jarFile)) {
-			Assert.state(zipFile.getEntries().hasMoreElements(), "File '" + jarFile.toString()
+			Assert.state(zipFile.getEntries().hasMoreElements(), () -> "File '" + jarFile
 					+ "' is not compatible with buildpacks; ensure jar file is valid and launch script is not enabled");
 		}
 		catch (IOException ex) {