diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/socket/WebSocketIntegrationTests.java b/spring-webflux/src/test/java/org/springframework/web/reactive/socket/WebSocketIntegrationTests.java
index 6fbb5732e6..e5805ba80f 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/socket/WebSocketIntegrationTests.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/socket/WebSocketIntegrationTests.java
@@ -22,7 +22,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicReference;
-import java.util.logging.Level;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -33,8 +32,6 @@ import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.publisher.MonoProcessor;
 import reactor.core.publisher.ReplayProcessor;
-import reactor.core.publisher.SignalType;
-import sun.util.logging.PlatformLogger;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -42,7 +39,8 @@ import org.springframework.http.HttpHeaders;
 import org.springframework.web.reactive.HandlerMapping;
 import org.springframework.web.reactive.handler.SimpleUrlHandlerMapping;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
 
 /**
  * Integration tests with server-side {@link WebSocketHandler}s.