Polish

spring-webflux/src/main/java/org/springframework/web/reactive/result/method/SyncHandlerMethodArgumentResolver.java

@@ -16,8 +16,6 @@
 
 package org.springframework.web.reactive.result.method;
 
-import java.util.Optional;
-
 import reactor.core.publisher.Mono;
 
 import org.springframework.core.MethodParameter;

spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/RequestHeaderMethodArgumentResolver.java

@@ -18,7 +18,6 @@ package org.springframework.web.reactive.result.method.annotation;
 
 import java.util.List;
 import java.util.Map;
-import java.util.Optional;
 
 import org.springframework.beans.factory.config.ConfigurableBeanFactory;
 import org.springframework.core.MethodParameter;

spring-webflux/src/main/java/org/springframework/web/reactive/result/method/annotation/SessionAttributeMethodArgumentResolver.java

@@ -16,8 +16,6 @@
 
 package org.springframework.web.reactive.result.method.annotation;
 
-import java.util.Optional;
-
 import reactor.core.publisher.Mono;
 
 import org.springframework.beans.factory.config.ConfigurableBeanFactory;

spring-webflux/src/test/java/org/springframework/web/reactive/result/SimpleUrlHandlerMappingIntegrationTests.java

@@ -18,7 +18,6 @@ package org.springframework.web.reactive.result;
 
 import java.net.URI;
 import java.nio.charset.StandardCharsets;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 

spring-webflux/src/test/java/org/springframework/web/reactive/socket/AbstractWebSocketIntegrationTests.java

@@ -21,7 +21,6 @@ import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
 
-import org.apache.tomcat.websocket.WsContainerProvider;
 import org.apache.tomcat.websocket.WsWebSocketContainer;
 import org.apache.tomcat.websocket.server.WsContextListener;
 import org.junit.After;