Pares back some deprecation after analyzing each file (#1640)

This puts specific comments in as to why certain files that seem like they
shouldn't be public are. Notably, this includes entrypoint autoconfiguration,
which are sometimes order sensitive. In other cases there are types that were
documented (notably the async package).

This also untangles a few configuration.

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/autoconfig/TraceAutoConfiguration.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.sleuth.autoconfig;
 
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
@@ -70,14 +69,13 @@ import org.springframework.util.StringUtils;
  * @author Marcin Grzejszczak
  * @author Tim Ysewyn
  * @since 2.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnProperty(value = "spring.sleuth.enabled", matchIfMissing = true)
 @EnableConfigurationProperties(SleuthProperties.class)
 @Import({ SleuthLogAutoConfiguration.class, SamplerAutoConfiguration.class })
+// public allows @AutoConfigureAfter(TraceAutoConfiguration)
+// for components needing Tracing
 public class TraceAutoConfiguration {
 
 	/**
@@ -90,42 +88,40 @@ public class TraceAutoConfiguration {
 	 */
 	public static final String DEFAULT_SERVICE_NAME = "default";
 
-	@Autowired(required = false)
-	List<SpanAdjuster> spanAdjusters = new ArrayList<>();
-
-	@Autowired(required = false)
-	List<SpanHandler> spanHandlers = new ArrayList<>();
-
 	@Autowired(required = false)
 	ExtraFieldPropagation.FactoryBuilder extraFieldPropagationFactoryBuilder;
 
-	@Autowired(required = false)
-	List<TracingCustomizer> tracingCustomizers = new ArrayList<>();
-
-	@Autowired(required = false)
-	List<ExtraFieldCustomizer> extraFieldCustomizers = new ArrayList<>();
-
 	@Bean
 	@ConditionalOnMissingBean
 	// NOTE: stable bean name as might be used outside sleuth
 	Tracing tracing(@LocalServiceName String serviceName, Propagation.Factory factory,
 			CurrentTraceContext currentTraceContext, Sampler sampler,
 			ErrorParser errorParser, SleuthProperties sleuthProperties,
-			@Nullable List<Reporter<zipkin2.Span>> spanReporters) {
+			@Nullable List<Reporter<zipkin2.Span>> spanReporters,
+			@Nullable List<SpanAdjuster> spanAdjusters,
+			@Nullable List<SpanHandler> spanHandlers,
+			@Nullable List<TracingCustomizer> tracingCustomizers) {
+		if (spanAdjusters == null) {
+			spanAdjusters = Collections.emptyList();
+		}
 		Tracing.Builder builder = Tracing.newBuilder().sampler(sampler)
 				.errorParser(errorParser)
 				.localServiceName(StringUtils.isEmpty(serviceName) ? DEFAULT_SERVICE_NAME
 						: serviceName)
 				.propagationFactory(factory).currentTraceContext(currentTraceContext)
-				.spanReporter(new CompositeReporter(this.spanAdjusters,
+				.spanReporter(new CompositeReporter(spanAdjusters,
 						spanReporters != null ? spanReporters : Collections.emptyList()))
 				.traceId128Bit(sleuthProperties.isTraceId128())
 				.supportsJoin(sleuthProperties.isSupportsJoin());
-		for (SpanHandler spanHandlerFactory : this.spanHandlers) {
-			builder.addSpanHandler(spanHandlerFactory);
+		if (spanHandlers != null) {
+			for (SpanHandler spanHandlerFactory : spanHandlers) {
+				builder.addSpanHandler(spanHandlerFactory);
+			}
 		}
-		for (TracingCustomizer customizer : this.tracingCustomizers) {
-			customizer.customize(builder);
+		if (tracingCustomizers != null) {
+			for (TracingCustomizer customizer : tracingCustomizers) {
+				customizer.customize(builder);
+			}
 		}
 		return builder.build();
 	}
@@ -144,7 +140,11 @@ public class TraceAutoConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
-	Propagation.Factory sleuthPropagation(SleuthProperties sleuthProperties) {
+	Propagation.Factory sleuthPropagation(SleuthProperties sleuthProperties,
+			List<ExtraFieldCustomizer> extraFieldCustomizers) {
+		if (extraFieldCustomizers == null) {
+			extraFieldCustomizers = Collections.emptyList();
+		}
 		if (sleuthProperties.getBaggageKeys().isEmpty()
 				&& sleuthProperties.getPropagationKeys().isEmpty()
 				&& extraFieldCustomizers.isEmpty()
@@ -177,7 +177,7 @@ public class TraceAutoConfiguration {
 				factoryBuilder = factoryBuilder.addRedactedField(key);
 			}
 		}
-		for (ExtraFieldCustomizer customizer : this.extraFieldCustomizers) {
+		for (ExtraFieldCustomizer customizer : extraFieldCustomizers) {
 			customizer.customize(factoryBuilder);
 		}
 		return factoryBuilder.build();

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceAsyncCustomizer.java

@@ -29,10 +29,8 @@ import org.springframework.scheduling.annotation.AsyncConfigurerSupport;
  *
  * @author Dave Syer
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class LazyTraceAsyncCustomizer extends AsyncConfigurerSupport {
 
 	private final BeanFactory beanFactory;

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceAsyncTaskExecutor.java

@@ -35,10 +35,8 @@ import org.springframework.core.task.AsyncTaskExecutor;
  *
  * @author Marcin Grzejszczak
  * @since 2.1.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class LazyTraceAsyncTaskExecutor implements AsyncTaskExecutor {
 
 	private static final Log log = LogFactory.getLog(LazyTraceAsyncTaskExecutor.class);

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceExecutor.java

@@ -32,10 +32,8 @@ import org.springframework.cloud.sleuth.SpanNamer;
  *
  * @author Dave Syer
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class LazyTraceExecutor implements Executor {
 
 	private static final Log log = LogFactory.getLog(LazyTraceExecutor.class);

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/LazyTraceThreadPoolTaskExecutor.java

@@ -39,11 +39,9 @@ import org.springframework.util.concurrent.ListenableFuture;
  *
  * @author Marcin Grzejszczak
  * @since 1.0.10
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @SuppressWarnings("serial")
+// public as most types in this package were documented for use
 public class LazyTraceThreadPoolTaskExecutor extends ThreadPoolTaskExecutor {
 
 	private static final Log log = LogFactory

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceCallable.java

@@ -33,10 +33,8 @@ import org.springframework.cloud.sleuth.SpanNamer;
  * @author Spencer Gibb
  * @author Marcin Grzejszczak
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class TraceCallable<V> implements Callable<V> {
 
 	/**

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceRunnable.java

@@ -30,10 +30,8 @@ import org.springframework.cloud.sleuth.SpanNamer;
  * @author Spencer Gibb
  * @author Marcin Grzejszczak
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class TraceRunnable implements Runnable {
 
 	/**

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceableExecutorService.java

@@ -36,10 +36,8 @@ import org.springframework.cloud.sleuth.SpanNamer;
  *
  * @author Gaurav Rai Mazra
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class TraceableExecutorService implements ExecutorService {
 
 	final ExecutorService delegate;

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/async/TraceableScheduledExecutorService.java

@@ -29,10 +29,8 @@ import org.springframework.beans.factory.BeanFactory;
  *
  * @author Gaurav Rai Mazra
  * @since 1.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
+// public as most types in this package were documented for use
 public class TraceableScheduledExecutorService extends TraceableExecutorService
 		implements ScheduledExecutorService {
 

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/messaging/TraceMessagingAutoConfiguration.java

@@ -17,7 +17,6 @@
 package org.springframework.cloud.sleuth.instrument.messaging;
 
 import java.lang.reflect.Field;
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
@@ -49,7 +48,6 @@ import org.springframework.amqp.rabbit.core.RabbitTemplate;
 import org.springframework.aop.framework.ProxyFactoryBean;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.BeanPostProcessor;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
@@ -86,10 +84,7 @@ import org.springframework.util.ReflectionUtils;
  *
  * @author Marcin Grzejszczak
  * @since 2.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnBean(Tracing.class)
 @ConditionalOnClass(MessagingTracing.class)
@@ -97,17 +92,17 @@ import org.springframework.util.ReflectionUtils;
 		TraceSpringMessagingAutoConfiguration.class })
 @OnMessagingEnabled
 @EnableConfigurationProperties(SleuthMessagingProperties.class)
+// public allows @AutoConfigureAfter(TraceMessagingAutoConfiguration)
+// for components needing MessagingTracing
 public class TraceMessagingAutoConfiguration {
 
-	@Autowired(required = false)
-	List<MessagingTracingCustomizer> messagingTracingCustomizers = new ArrayList<>();
-
 	@Bean
 	@ConditionalOnMissingBean
 	// NOTE: stable bean name as might be used outside sleuth
 	MessagingTracing messagingTracing(Tracing tracing,
 			@Nullable @ProducerSampler SamplerFunction<MessagingRequest> producerSampler,
-			@Nullable @ConsumerSampler SamplerFunction<MessagingRequest> consumerSampler) {
+			@Nullable @ConsumerSampler SamplerFunction<MessagingRequest> consumerSampler,
+			@Nullable List<MessagingTracingCustomizer> messagingTracingCustomizers) {
 
 		MessagingTracing.Builder builder = MessagingTracing.newBuilder(tracing);
 		if (producerSampler != null) {
@@ -116,8 +111,10 @@ public class TraceMessagingAutoConfiguration {
 		if (consumerSampler != null) {
 			builder.consumerSampler(consumerSampler);
 		}
-		for (MessagingTracingCustomizer customizer : this.messagingTracingCustomizers) {
-			customizer.customize(builder);
+		if (messagingTracingCustomizers != null) {
+			for (MessagingTracingCustomizer customizer : messagingTracingCustomizers) {
+				customizer.customize(builder);
+			}
 		}
 		return builder.build();
 	}

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/rpc/TraceRpcAutoConfiguration.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.sleuth.instrument.rpc;
 
-import java.util.ArrayList;
 import java.util.List;
 
 import brave.Tracing;
@@ -25,7 +24,6 @@ import brave.rpc.RpcTracing;
 import brave.rpc.RpcTracingCustomizer;
 import brave.sampler.SamplerFunction;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
@@ -41,27 +39,24 @@ import org.springframework.lang.Nullable;
  * Auto-configuration} related to RPC based communication.
  *
  * @since 2.2.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @Configuration(proxyBeanMethods = false)
 @ConditionalOnProperty(name = "spring.sleuth.rpc.enabled", havingValue = "true",
 		matchIfMissing = true)
 @ConditionalOnBean(Tracing.class)
 @ConditionalOnClass(RpcTracing.class)
 @AutoConfigureAfter(TraceAutoConfiguration.class)
+// public allows @AutoConfigureAfter(TraceRpcAutoConfiguration)
+// for components needing RpcTracing
 public class TraceRpcAutoConfiguration {
 
-	@Autowired(required = false)
-	List<RpcTracingCustomizer> rpcTracingCustomizers = new ArrayList<>();
-
 	@Bean
 	@ConditionalOnMissingBean
 	// NOTE: stable bean name as might be used outside sleuth
 	RpcTracing rpcTracing(Tracing tracing,
 			@Nullable @RpcClientSampler SamplerFunction<RpcRequest> clientSampler,
-			@Nullable @RpcServerSampler SamplerFunction<RpcRequest> serverSampler) {
+			@Nullable @RpcServerSampler SamplerFunction<RpcRequest> serverSampler,
+			@Nullable List<RpcTracingCustomizer> rpcTracingCustomizers) {
 
 		RpcTracing.Builder builder = RpcTracing.newBuilder(tracing);
 		if (clientSampler != null) {
@@ -70,8 +65,10 @@ public class TraceRpcAutoConfiguration {
 		if (serverSampler != null) {
 			builder.serverSampler(serverSampler);
 		}
-		for (RpcTracingCustomizer customizer : this.rpcTracingCustomizers) {
-			customizer.customize(builder);
+		if (rpcTracingCustomizers != null) {
+			for (RpcTracingCustomizer customizer : rpcTracingCustomizers) {
+				customizer.customize(builder);
+			}
 		}
 		return builder.build();
 	}

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/web/TraceHttpAutoConfiguration.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.sleuth.instrument.web;
 
-import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Pattern;
 
@@ -30,14 +29,16 @@ import brave.http.HttpTracingCustomizer;
 import brave.sampler.SamplerFunction;
 import brave.sampler.SamplerFunctions;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 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.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cloud.sleuth.autoconfig.TraceAutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
 import org.springframework.core.Ordered;
 import org.springframework.lang.Nullable;
 
@@ -47,23 +48,26 @@ import org.springframework.lang.Nullable;
  *
  * @author Marcin Grzejszczak
  * @since 2.0.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @Configuration(proxyBeanMethods = false)
-@ConditionalOnBean(TraceWebAutoConfiguration.class)
-@ConditionalOnProperty(name = "spring.sleuth.http.enabled", havingValue = "true",
-		matchIfMissing = true)
-@AutoConfigureAfter(TraceWebAutoConfiguration.class)
-@EnableConfigurationProperties({ TraceKeys.class, SleuthHttpLegacyProperties.class })
+// This was formerly conditional on TraceWebAutoConfiguration, which was
+// conditional on "spring.sleuth.web.enabled". As this is conditional on
+// "spring.sleuth.http.enabled", to be compatible with old behavior we have
+// to be conditional on two properties.
+@ConditionalOnProperty(
+		name = { "spring.sleuth.http.enabled", "spring.sleuth.web.enabled" },
+		havingValue = "true", matchIfMissing = true)
+@ConditionalOnBean(Tracing.class)
+@ConditionalOnClass(HttpTracing.class)
+@AutoConfigureAfter(TraceAutoConfiguration.class)
+@Import(TraceWebAutoConfiguration.class)
+@EnableConfigurationProperties(TraceKeys.class)
+// public allows @AutoConfigureAfter(TraceHttpAutoConfiguration)
+// for components needing HttpTracing
 public class TraceHttpAutoConfiguration {
 
 	static final int TRACING_FILTER_ORDER = Ordered.HIGHEST_PRECEDENCE + 5;
 
-	@Autowired(required = false)
-	List<HttpTracingCustomizer> httpTracingCustomizers = new ArrayList<>();
-
 	@Bean
 	@ConditionalOnMissingBean
 	// NOTE: stable bean name as might be used outside sleuth
@@ -76,7 +80,8 @@ public class TraceHttpAutoConfiguration {
 			@Nullable brave.http.HttpServerParser serverParser,
 			@HttpClientSampler SamplerFunction<HttpRequest> httpClientSampler,
 			@Nullable @ServerSampler HttpSampler serverSampler,
-			@Nullable @HttpServerSampler SamplerFunction<HttpRequest> httpServerSampler) {
+			@Nullable @HttpServerSampler SamplerFunction<HttpRequest> httpServerSampler,
+			@Nullable List<HttpTracingCustomizer> httpTracingCustomizers) {
 		if (httpServerSampler == null) {
 			httpServerSampler = serverSampler;
 		}
@@ -109,10 +114,11 @@ public class TraceHttpAutoConfiguration {
 			builder.serverParser(serverParser);
 		}
 
-		for (HttpTracingCustomizer customizer : this.httpTracingCustomizers) {
-			customizer.customize(builder);
+		if (httpTracingCustomizers != null) {
+			for (HttpTracingCustomizer customizer : httpTracingCustomizers) {
+				customizer.customize(builder);
+			}
 		}
-
 		return builder.build();
 	}
 

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/web/client/TraceWebAsyncClientAutoConfiguration.java

@@ -30,7 +30,7 @@ import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
-import org.springframework.cloud.sleuth.instrument.web.TraceWebServletAutoConfiguration;
+import org.springframework.cloud.sleuth.instrument.web.TraceHttpAutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.http.client.AsyncClientHttpRequestFactory;
@@ -54,7 +54,7 @@ import org.springframework.web.client.AsyncRestTemplate;
 		matchIfMissing = true)
 @ConditionalOnClass(AsyncRestTemplate.class)
 @ConditionalOnBean(HttpTracing.class)
-@AutoConfigureAfter(TraceWebServletAutoConfiguration.class)
+@AutoConfigureAfter(TraceHttpAutoConfiguration.class)
 public class TraceWebAsyncClientAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/instrument/web/client/TraceWebClientAutoConfiguration.java

@@ -42,7 +42,7 @@ import org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoR
 import org.springframework.boot.web.client.RestTemplateCustomizer;
 import org.springframework.cloud.commons.httpclient.HttpClientConfiguration;
 import org.springframework.cloud.gateway.filter.headers.HttpHeadersFilter;
-import org.springframework.cloud.sleuth.instrument.web.TraceWebServletAutoConfiguration;
+import org.springframework.cloud.sleuth.instrument.web.TraceHttpAutoConfiguration;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -69,7 +69,7 @@ import org.springframework.web.reactive.function.client.WebClient;
 @Configuration(proxyBeanMethods = false)
 @SleuthWebClientEnabled
 @ConditionalOnBean(HttpTracing.class)
-@AutoConfigureAfter(TraceWebServletAutoConfiguration.class)
+@AutoConfigureAfter(TraceHttpAutoConfiguration.class)
 @AutoConfigureBefore(HttpClientConfiguration.class)
 public class TraceWebClientAutoConfiguration {
 

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/log/SleuthSlf4jProperties.java

@@ -26,7 +26,6 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
  *
  * @author Arthur Gavlyukovskiy
  * @since 1.0.12
- * 3.0
  */
 @ConfigurationProperties("spring.sleuth.log.slf4j")
 // TODO: Hide in 3.x, if it isn't already deleted

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/sampler/SamplerAutoConfiguration.java

@@ -33,10 +33,7 @@ import org.springframework.context.annotation.Configuration;
  * @author Marcin Grzejszczak
  * @see SamplerCondition
  * @since 2.1.0
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 @Configuration(proxyBeanMethods = false)
 @EnableConfigurationProperties(SamplerProperties.class)
 // This is not auto-configuration, but it was in the past. Leaving the name as

spring-cloud-sleuth-core/src/main/java/org/springframework/jms/config/TracingJmsListenerEndpointRegistry.java

@@ -46,10 +46,7 @@ import org.springframework.lang.Nullable;
  *
  * @author Marcin Grzejszczak
  * @since 2.1.1
- * @deprecated This type should have never been public and will be hidden or removed in
- * 3.0
  */
-@Deprecated
 public final class TracingJmsListenerEndpointRegistry
 		extends JmsListenerEndpointRegistry {
 

spring-cloud-sleuth-core/src/main/resources/META-INF/spring.factories

@@ -4,7 +4,6 @@ org.springframework.cloud.sleuth.annotation.SleuthAnnotationAutoConfiguration,\
 org.springframework.cloud.sleuth.autoconfig.TraceAutoConfiguration,\
 org.springframework.cloud.sleuth.propagation.SleuthTagPropagationAutoConfiguration,\
 org.springframework.cloud.sleuth.instrument.web.TraceHttpAutoConfiguration,\
-org.springframework.cloud.sleuth.instrument.web.TraceWebAutoConfiguration,\
 org.springframework.cloud.sleuth.instrument.web.TraceWebServletAutoConfiguration,\
 org.springframework.cloud.sleuth.instrument.web.client.TraceWebClientAutoConfiguration,\
 org.springframework.cloud.sleuth.instrument.web.client.TraceWebAsyncClientAutoConfiguration,\