<modify>: adjust code format, delete no-use packages.

Author: wickdynex

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/tracing/zipkin/ZipkinConfigurations.java

@@ -32,21 +32,16 @@
 import zipkin2.reporter.SpanBytesEncoder;
 import zipkin2.reporter.brave.AsyncZipkinSpanHandler;
 import zipkin2.reporter.brave.MutableSpanBytesEncoder;
-import zipkin2.reporter.urlconnection.URLConnectionSender;
 
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.actuate.autoconfigure.tracing.ConditionalOnEnabledTracing;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
-import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.web.client.RestTemplateBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
-import org.springframework.web.client.RestTemplate;
-import org.springframework.web.reactive.function.client.WebClient;
 
 /**
  * Configurations for Zipkin. Those are imported by {@link ZipkinAutoConfiguration}.
@@ -57,9 +52,7 @@
 class ZipkinConfigurations {
 
 	@Configuration(proxyBeanMethods = false)
-	@Import({
-			HttpClientSenderConfiguration.class
-	})
+	@Import({ HttpClientSenderConfiguration.class })
 	static class SenderConfiguration {
 
 	}
@@ -76,9 +69,9 @@ ZipkinHttpClientSender httpClientSender(ZipkinProperties properties, Encoding en
 				ObjectProvider<ZipkinConnectionDetails> connectionDetailsProvider,
 				ObjectProvider<HttpEndpointSupplier.Factory> endpointSupplierFactoryProvider) {
 			ZipkinConnectionDetails connectionDetails = connectionDetailsProvider
-					.getIfAvailable(() -> new PropertiesZipkinConnectionDetails(properties));
+				.getIfAvailable(() -> new PropertiesZipkinConnectionDetails(properties));
 			HttpEndpointSupplier.Factory endpointSupplierFactory = endpointSupplierFactoryProvider
-					.getIfAvailable(HttpEndpointSuppliers::constantFactory);
+				.getIfAvailable(HttpEndpointSuppliers::constantFactory);
 			Builder httpClientBuilder = HttpClient.newBuilder().connectTimeout(properties.getConnectTimeout());
 			customizers.orderedStream().forEach((customizer) -> customizer.customize(httpClientBuilder));
 			return new ZipkinHttpClientSender(encoding, endpointSupplierFactory, connectionDetails.getSpanEndpoint(),

spring-boot-project/spring-boot-actuator-autoconfigure/src/test/java/org/springframework/boot/actuate/autoconfigure/tracing/zipkin/ZipkinConfigurationsSenderConfigurationTests.java

@@ -16,14 +16,6 @@
 
 package org.springframework.boot.actuate.autoconfigure.tracing.zipkin;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
-import okhttp3.mockwebserver.MockResponse;
-import okhttp3.mockwebserver.MockWebServer;
-import okhttp3.mockwebserver.RecordedRequest;
 import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentMatchers;
 import zipkin2.reporter.BytesMessageSender;
@@ -36,10 +28,8 @@
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.boot.test.context.runner.ReactiveWebApplicationContextRunner;
 import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
-import org.springframework.boot.web.client.RestTemplateBuilder;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.web.reactive.function.client.WebClient;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.BDDMockito.then;