Polishing

- primarily automated "clean up" using Eclipse IDE

spring-web/src/main/java/org/springframework/http/client/observation/DefaultClientRequestObservationConvention.java

@@ -24,11 +24,10 @@ import io.micrometer.common.KeyValues;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.HttpStatusCode;
 import org.springframework.http.client.ClientHttpResponse;
+import org.springframework.http.client.observation.ClientHttpObservationDocumentation.HighCardinalityKeyNames;
+import org.springframework.http.client.observation.ClientHttpObservationDocumentation.LowCardinalityKeyNames;
 import org.springframework.util.StringUtils;
 
-import static org.springframework.http.client.observation.ClientHttpObservationDocumentation.HighCardinalityKeyNames;
-import static org.springframework.http.client.observation.ClientHttpObservationDocumentation.LowCardinalityKeyNames;
-
 /**
  * Default implementation for a {@link ClientRequestObservationConvention},
  * extracting information from the {@link ClientRequestObservationContext}.

spring-web/src/main/java/org/springframework/web/client/ExtractingResponseErrorHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -85,6 +85,7 @@ public class ExtractingResponseErrorHandler extends DefaultResponseErrorHandler
 	/**
 	 * Set the message converters to use by this extractor.
 	 */
+	@Override
 	public void setMessageConverters(List<HttpMessageConverter<?>> messageConverters) {
 		this.messageConverters = messageConverters;
 	}